Larger Elastic Modulus Research Articles

In silico stress-strain measurements on self-assembled protein lattices.

Due to their large mechanical strength and potential for functionalization, beta-solenoid proteins show promise as building blocks in biomaterials applications such as two- and three-dimensional scaffolds. We have designed simulation models of two-dimensional square and honeycomb protein lattices by covalently linking a beta-solenoid protein, the spruce budworm antifreeze protein (SBAFP), to symmetric protein multimers. Periodic boundary conditions applied to the simulation cell allow for the simulation of an infinite lattice. We use molecular dynamics to strain the lattice by deforming the simulation cell and measuring the resulting stress tensor. We evaluate the linear portion of stress-strain curves to extract the corresponding bulk and shear elastic moduli. When strained at a rate of 0.3 nm ps-1, the lattices yield a bulk modulus of approximately 3 GPa. This large elastic modulus demonstrates that 2-dimensional structures designed from beta-solenoid proteins can be expected to retain the exceptional material strength of their building blocks.

Pickering-stabilized emulsion gels fabricated from wheat protein nanoparticles: Effect of pH, NaCl and oil content

ABSTRACTA novel Pickering-stabilized emulsion gel with controlled rheological properties was derived from wheat gliadin nanoparticles-stabilized emulsions by altering preparation conditions (pH, ionic strength or oil content). The formed nanoparticles were relatively small uniform spheres particles (d < 120 nm), whose surface potential (ζ-potential) changed from +9.9 mV to −14.19 mV with the pH of the solution increased from 3.5 to 9. The isoelectric point of gliadin nanoparticles was around pH 6.8. The nanoparticles were highly susceptible to aggregation at pH values near their isoelectric point due to a reduction of electrostatic repulsion between them. Pickering-stabilized emulsions could be formed by blending the nanoparticles with oil and water, and Pickering-stabilized emulsion gels were obtained by altering pH, ionic strength or oil content of the dispersions. Creaming stabilities and rheological properties of the emulsion gels were modulated. Stable Pickering-stabilized emulsion gels with relatively large elastic modulus were formed with 70% oil content at pH 5.5 and 6.0 in the absence of NaCl. The viscosity increased with the increasing of oil content and salt concentration, and the viscosity enhanced when the pH around the isoelectric point. These results may facilitate the design of novel viscoelastic emulsion gels with the Pickering-stabilize mechanism which are suitable for utilizing in foods and other products.

Effect of fermentation on microbiological, physicochemical and physical characteristics of sourdough and impact of its use on bread quality

The chemical, microbiological, and texture characteristics and rheological properties of sourdoughs were studied in the course of fermentations at 25 and 35°C over a period of 72 hours. After 6 h of fermentation, pH decreased rapidly in the sourdough at 35°C. However, after 72 h the pH values were slightly lower in the sourdough at 25°C. To obtain sourdough with an optimum pH, 11 h were required at 25°C and 9 h at 35°C. Acidity increased more slowly in sourdough at 25°C. However, values were similar in both types of dough after 24 h, but higher in dough at 25°C after 72 hours. Counts of lactic acid bacteria were slightly higher in sourdough at 35°C after 6 h, but after 24 h the sourdough at 25°C showed higher counts. Sourdough evinced elastic behaviour, with a larger elastic modulus in dough at 25°C. Both the phase angle and the relationship between elastic and viscous modulus indicated that dough was an elastic solid that lost elasticity over time. The best mechanical characteristics were noted in dough fermented at 25°C during 24 hours. Bread made with sourdough was rated more highly.

Anisotropic response of cold sprayed copper deposits

Cold spray (CS) is characterized as a solid-state process of high deposition efficiency for metallic coatings as well as additive manufacturing of metals. However, due to high velocity impact and extensive deformation of particles during CS, the as-received coatings or deposits may present anisotropic characteristics which could influence the performance of deposits. Hence this study aims to investigate the anisotropic behaviors of CSed copper deposits in a systematic way. The microstructure and micromechanical properties of the deposits both in the cross-section (v-face) and in the parallel plane to the surface (p-face) were characterized. Tensile tests were performed at various loading angles with respect to the nozzle moving direction in the p-face. It is revealed that there exist strong microstructural and mechanical anisotropies in CSed deposits. Different interparticle interaction results in more severe particle impact deformation in v-face than p-face, with larger elastic modulus and microhardness values. The tensile tests show an unexpected anisotropy in both ultimate tensile strength and elongation, with the highest performance occurring at the angle of 20°. The in-plane tensile anisotropy could be attributed to the parallel multiple passes. Therefore, a novel weave-spraying method was proposed, which can greatly reduce the tensile anisotropy of CSed deposits.

Broad modulus range nanomechanical mapping by magnetic-drive soft probes

Stiffness matching between the probe and deformed portion of the sample in piezo-drive peak force modulation atomic force microscopy (AFM) limits the modulus measurement range of single probes. Here we develop a magnetic drive peak force modulation AFM to broaden the dynamic range of the probe with direct cantilever excitation. This approach not only successfully drives the softest commercial probe (6 pN nm−1) for mapping extremely soft samples in liquid but also provides an indentation force of hundreds of nanonewtons for stiff samples with a soft probe. Features of direct measurements of the indentation force and depth can unify the elastic modulus range up to four orders of magnitude, from 1 kPa to 10 MPa (in liquid) and 1 MPa to 20 GPa (in air or liquid) using a single probe. This approach can be particularly useful for analysing heterogeneous samples with large elastic modulus variations in multi-environments.

Features of acoustic waves in media with large porosity values in the framework of the Biot theory

The Biot theory is used to study the properties of acoustic waves in fluid-saturated porous media with large porosity values. Materials are considered for which a large elasticity modulus of the matrix (skeleton) is comparable in size to the large fluid pore saturation modulus.

Cement sheath integrity analysis of underground gas storage well based on elastoplastic theory

For injection & production well built in underground gas storage (UGS), sealing failure of cement sheath is one of the major factors threatening wellbore integrity due to continuous varied casing pressure and temperature. Cement sheath may deform plastically in the process of gas injection and lose airtightness if unloading casing pressure. In view of this, an analytical model of the stress, displacement and interaction of casing-cement sheath-surrounding rocks subjected to inner casing pressure and outer radial far-field in-situ stress and debonding of cementing surfaces were derived with due consideration of varied casing pressure, temperature and pore pressure due to cyclic injection and production. In this model, casing, cement sheath and surrounding rocks were seen as multi-layer cylinders and were analyzed based on thermoelastic, elastoplastic and poroelastic theory, respectively. A demonstration calculation is performed to reveal the stress and displacement of cement sheath under conditions of cyclic loading and unloading. The model was compared and validated by finite element simulations. Factors affecting the interaction of cement-casing and cement-rocks and the formation of micro-annulus were analyzed. As a result, when loading casing pressure, the radial contact stress on the bonding surfaces increases nonlinearly and cement sheath may deform plastically. In the process of unloading casing pressure, if low far-field in-situ stress exists, the radial contact stress tends to transform from compression to tension leading to the separation of bonding surfaces. The variation of temperature, pore pressure and far-field in-situ stress are key factors affecting the stress & deformation of cement sheath and micro-annulus. For cement with large elasticity modulus and small Poisson's ratio, plastic deformation and micro-annulus are prone to forming. Thus, the reasonability of the application of ultra-high toughness cement in UGS well has been verified. The results are of guiding significance to the operating optimization, micro-annulus prevention and wellbore integrity improvement of UGS wells.

Synthesis and Characterization of Electroless Ni–P/Ni–Mo–P Duplex Coating with Different Thickness Combinations

In this work, a novel duplex Ni–P/Ni–Mo–P coating upon the aluminum (Al) substrate was synthesized via an electroless plating, i.e., the binary Ni–P coating as a transition layer and the ternary Ni–Mo–P coating on the top. It was found that the duplex coating was of a high hardness, large elastic modulus, low porosity and excellent corrosion resistance. In addition, experimental results revealed that for a total 20 μm coating thickness, the duplex coating with a 7 μm of the Ni–Mo–P coating exhibited the best corrosion resistance in 0.5 mol/L sulfuric acid solution, which was attributed to its compact structure and low porosity. This duplex Ni–P/Ni–Mo-P coating with a thin ternary Ni–Mo–P layer is expected to solve the problem of low deposition rate of ternary alloy coating and thereby may expand applications of Al and its alloys in the fields of machine manufacture and corrosion environment.

Pengaruh Faktor Air Semen (FAS) Terhadap Toughness Beton

The pupose of this research is to observe the effect of water cement factors to the toughness of concrete :“How is the effect of water cement factors to the toughness of concrete?” Laboratory testing is done for concrete base material, that is aggregate: Rough (pebble), fine aggregate (sand), cement (PC= Portland Cement), water. The test object is in the form of a cylinder with mix design that have variation at water cement factors (cement water factors 0,35, cement water factors 0,40, and cement water factors 0,45) for 10 pieces, which is soaked for 26 days. On the 28th day, the object will be tested press.Based on analysis and discussion, then obtained that (1) From the mixed composistion based on Water Cement Factors, it is seen that the mixture using the lowest water cement factors, Cement Water Factors 0.35 will give a stronger press value and larger elastic modulus, 23,36 MPa at Cement Water Factors 0.40 (11,34%) and increased to 26,68 Mpa at Cement Water Factors 0.35 (27,17%). (2) Compared to the lowest Cement Water Factors, Cement Water Factors 0.35 will give a higher Work of Fracture ( Gf ). This is shown from Work of Fracture ( Gf ) to Cement Water Factors 0.45 = 31,445 N/m, increased to 34,582 N/m at Cement Water Factors 0.40 (9,025%) and increased to 35,582 N/m at Cement Water Factors 0.35 (13,156%). (3). Quantitatively the hardness, the bigger value of power achieved will show the bigger concrete ductile. This is shown from Stress Intensity Factor (K) to Cement Water Factors 0.45 = 0,8267 N/m, incresed to 0,8664 N/m at Cement Water Factors 0.40 (4,80%) and increased to 0,9088 N/m at Cement Water Factors 0.35 (9,93%).

Mechanical and Magnetic Properties of New (Fe,Co,Ni)–B–Si–Ta Bulk Glassy Alloys

The alloying effects of the like-atom substitution of Ni and Co for Fe on the various properties of Fe70B16.7Si8.3Ta5 metallic glass are investigated in this present work. New Fe-based bulk glassy alloys, namely Fe60–x Co x Ni10B16.7Si8.3Ta5 (at.%; x = 10, 20 and 30) with critical diameters up to 1.5 mm, were made by means of copper mold casting. A new glass-forming ability indicator, viz., the enthalpy of supercooled liquid, has been introduced for assessment of the glass-forming abilities (GFAs) of these Fe-based multi-component alloys. Nano-indentation results indicate that the calculated elastic modulus and hardness of the bulk glassy alloys are lower than those of the Fe70B16.7Si8.3Ta5 alloy. Among these bulk glassy alloys, Fe70B16.7Si8.3Ta5 exhibits the large elastic modulus and hardness with values of 178 ± 1 GPa and 12.9 ± 0.1 GPa, respectively. All the bulk glassy alloys exhibit good soft magnetic properties with high saturation magnetization B s ~ 0.75–1.04 T but low coercive force H c ~ 0.2–5.2 A/m.

Toward cyclic durable core/shell nanostructure of Sn-C composite anodes for stable lithium storage by simulating its lithiation-induced internal strain

Abstract To explore the capacity fading mechanism during long-term cycling of the milled Sn-C lithium storage anodes, the structural stability of the cycled Sn-C electrodes has been investigated using internal strain distribution as indicator by simulation with different two-dimensional core/shell nanostructure models solved by Lagrangian description, combining with experimental results. It is revealed that the Sn-C composite of a double-coating structure with the smaller Sn coated by a stiff layer Li2O and embedding in graphite sustains less deformation, and has higher structural stability than the single-coating one. Due to the lithiation-induced stress and strain effect, Sn particles aggregate and the Sn whiskers grow in the cycled Sn-C electrodes that observed by SEM and TEM, which is closely related to the Sn transportation. This strain induced structural damage causes the capacity fading of Sn anodes. Based on the simulation of strain distribution induced by lithiation, the nanostructure has been designed for Sn-C electrodes of smaller Sn particles embedded in matrix with large elastic modulus and proper thickness to obtain optimized combination of capacity and cycleability. It would provide a guideline for designing material and microstructure of anodes for lithium ion batteries.

Oxide reinforced Ni base composite prepared by spark plasma sintering

Y 2 O 3 is a favourable reinforcement for the oxide dispersion strengthened superalloy due to its good high temperature stability, excellent strength and large elastic modulus. In this work, Y 2 O 3 is introduced into the K4169 superalloy aiming to improve its high temperature properties. The high quality Y 2 O 3 and K4169 powder mixture can be obtained with the addition of the process control agent of stearic acid after high energy ball milling, and the Y 2 O 3 /K4I69 composite with uniformly dispersed reinforcement of nanoscale Y 2 O 3 particles are finally synthesized with the ball-milled powders by using spark plasma sintering.

Impact resistance of oil-immersed lignum vitae.

Biological materials immersed in vegetable and mineral oil, such as rattan armor and wooden sleepers, have been extensively used since ancient times because of their excellent mechanical properties. This study quantitatively investigated the viscoelasticity and tribological performance of lignum vitae immersed in poly-alpha-olefin (PAO) and tung oils (Aleuritesfordii Hemsl.) to reveal the mechanism of impact resistance. The acceleration of samples immersed in tung oil was higher than that of dry and PAO-immersed samples in the first impact. The elastic modulus of the samples immersed in tung oil increased slightly. The impact damage on the samples immersed in tung oil was reduced because of the low friction coefficient (0.07) resulted in a low wear rate. The extent of impact damage on the samples immersed in tung oil was approximately 34% and 58% lower than that on the dry and PAO oil-immersed samples, respectively, under an angle of 20° and a height of 10 cm. The impact damage on the PAO-immersed samples was reduced because of low friction coefficient. However, impact damage increased because of large elastic modulus. The findings of this study can serve as a reference for the application of modified biological materials with high strength and wear resistance.

Tunable phonon-cavity coupling in graphene membranes.

A major achievement of the past decade has been the realization of macroscopic quantum systems by exploiting the interactions between optical cavities and mechanical resonators. In these systems, phonons are coherently annihilated or created in exchange for photons. Similar phenomena have recently been observed through phonon-cavity coupling-energy exchange between the modes of a single system mediated by intrinsic material nonlinearity. This has so far been demonstrated primarily for bulk crystalline, high-quality-factor (Q > 10(5)) mechanical systems operated at cryogenic temperatures. Here, we propose graphene as an ideal candidate for the study of such nonlinear mechanics. The large elastic modulus of this material and capability for spatial symmetry breaking via electrostatic forces is expected to generate a wealth of nonlinear phenomena, including tunable intermodal coupling. We have fabricated circular graphene membranes and report strong phonon-cavity effects at room temperature, despite the modest Q factor (∼100) of this system. We observe both amplification into parametric instability (mechanical lasing) and the cooling of Brownian motion in the fundamental mode through excitation of cavity sidebands. Furthermore, we characterize the quenching of these parametric effects at large vibrational amplitudes, offering a window on the all-mechanical analogue of cavity optomechanics, where the observation of such effects has proven elusive.

Failure behavior of adhesive bonded interface between steel and bamboo plywood

Bamboo–steel composite structure is constructed with bamboo plywood and cold-formed thin-walled steel, which are bonded by structural adhesive. To investigate the failure behavior of the adhesive bonded interface between bamboo plywood and steel, both experimental and numerical analyses were performed. An adhesive bonded member was designed to observe the failure behavior through the variation of stress distribution on steel sheet under tension. Further analysis of failure behavior was carried out by the numerical model through the stress analysis at the adhesive bonded interfaces. The experimental and numerical analyses revealed the failure mainly occurred at the adhesive bonding interface, caused by the stress concentration at the end of the overlap. The influences of modulus of elasticity of bamboo plywood in the parallel to grain direction and the thickness of steel sheet on the stress distribution at the adhesive bonding interface were investigated, which indicated the stress distribution had a major effect on the load-carrying capacity of the composite structural member. It also suggests enlarging the geometry properly and choosing the bamboo plywood with large modulus of elasticity in the parallel to grain direction are effective to increase the load-carrying capacity.

Nanomechanical Behavior of High Gas Barrier Multilayer Thin Films

Nanoindentation and nanoscratch experiments were performed on thin multilayer films manufactured using the layer-by-layer (LbL) assembly technique. These films are known to exhibit high gas barrier, but little is known about their durability, which is an important feature for various packaging applications (e.g., food and electronics). Films were prepared from bilayer and quadlayer sequences, with varying thickness and composition. In an effort to evaluate multilayer thin film surface and mechanical properties, and their resistance to failure and wear, a comprehensive range of experiments were conducted: low and high load indentation, low and high load scratch. Some of the thin films were found to have exceptional mechanical behavior and exhibit excellent scratch resistance. Specifically, nanobrick wall structures, comprising montmorillonite (MMT) clay and polyethylenimine (PEI) bilayers, are the most durable coatings. PEI/MMT films exhibit high hardness, large elastic modulus, high elastic recovery, low friction, low scratch depth, and a smooth surface. When combined with the low oxygen permeability and high optical transmission of these thin films, these excellent mechanical properties make them good candidates for hard coating surface-sensitive substrates, where polymers are required to sustain long-term surface aesthetics and quality.

(Invited) Non-Classical Electrostriction in Materials with a Large Concentration of Point Defects

We have recently demonstrated anomalously large electrostriction, a nonlinear induction of strain by an electric field, in three well-studied ionic conductors: Gd-doped ceria, (Nb, Y)-stabilized cubic bismuth oxide and Y-doped hydrated barium zirconate. At room temperature, all three materials exhibit a strain electrostriction coefficient (M11) exceeding 10-17 m2/V2 and can generate stress of tens of MPa without apparent signs of saturation. According to the theory of classical electrostriction, presented two decades ago by Prof. R. Newnham (Penn State), the electrostriction polarization coefficient (Q) scales with the ratio of elastic compliance to dielectric constant. This theory successfully describes most classes of materials from polymers, generating large strain and small stress, to relaxor ferroelectrics that generate small strain and large stress. However, the three ionic conductors mentioned above have a large elastic modulus (> 80 GPa) and moderately low dielectric constant (<100), which places their Q coefficients at least two orders of magnitude above the values predicted by the classical theory. Of these three materials, Gd-doped ceria has been the subject of the most detailed investigation, including in-situ high-resolution, room temperature XANES and EXAFS. According to these data, oxygen vacancies giving rise to elastic dipoles play a central role in the appearance of electrostriction. CeCe-oxygen vacancy (Vo) repulsion increases the CeCe-VO distance and forms six anomalously short CeCe-oxygen (OO) bonds. The resulting 7OO-CeCe-VO complex behaves as a strong elastic dipole with uniaxial symmetry. The components of the elastic tensor estimated from the differential EXAFS data are -4.7% and +11%. Application of an external electric field reduces the CeCe-VO repulsion, causing reversal of the local distortions. Because of the large strains involved, very large macroscopic stresses, which can reach hundreds of MPa, are generated, in spite of the fact that only a few percent of anion-cation complexes are involved. However, the presence of oxygen vacancies is not a sufficient condition for non-classical electrostriction. Oxygen deficient ceria (Ce(III)-doped) and Lu-doped ceria with the same concentration of vacancies as Gd-doped ceria exhibit much lower electrostriction, while Eu-doped ceria displays electrostriction similar to that of Gd doped ceria. Since Gd and Eu have almost identical ionic radii while Ce(III) is much larger and Lu(III) is much smaller, the radius of the dopant seems to be a critical parameter. Similar to Gd-doped ceria, (Nb, Y)-stabilized cubic Bismuth oxide has a fluorite structure and exhibits large non-classical electrostriction, which monotonically increases wihin the range of 16-23% of the oxygen vacancies. It is interesting to note that increase in the vacancy concentration from 16 to 23 % causes almost 50% decrease in the Young’s modulus, in the cubic Bismuth oxide, whereas in Gd-doped ceria increase in the vacancy concentration decreases the Young’s modulus by less than 10%. Similar differences between cubic Bismuth oxide and Gd-doped ceria are observed for Poisson’s ratio: it decreases two fold for the cubic Bismuth oxide and remains unchanged for Gd-doped ceria. These differences indicate that the influence of the large concentration of vacancies on electrostrictive and mechanical properties differ considerably from material to material. This is also supported by the fact that the electrostriction coefficient of 14.5 mol% Y-doped zirconia falls very close to the expected from the classical electrostriction. Hydrated Y-doped BaZrO3 is a well-studied protonic conductor in which OH groups can be present at »7% of the oxygen sites. Preliminary investigations indicate that this material also exhibits large non-classical electrostriction; yet hydrated Y-doped BaZrO3 at room temperature in fact does not contain any vacancies. On this basis, one can only conclude that a primary condition for large non-classical electrostriction is the presence of a large concentration of point defects, which can be of any type, but which must form elastic dipoles with a particular degree of freedom at room temperature. We suggest that a search for new electromechanically active materials must include those with a large concentration of such point defects in general and, ionic conductors, in particular.

Poly(methyl methacrylate)‐grafted cellulose nanocrystals: One‐step synthesis, nanocomposite preparation, and characterization

AbstractCellulose nanocrystals (CNCs) are ideal reinforcing agents for polymer nanocomposites because they are lightweight and nano‐sized with a large aspect ratio and high elastic modulus. To overcome the poor compatibility of hydrophilic CNCs in non‐polar composite matrices, we grafted poly(methyl methacrylate) (PMMA) from the surface of CNCs using an aqueous, one‐pot, free radical polymerization method with ceric ammonium nitrate as the initiator. The hybrid nanoparticles were characterized by CP/MAS NMR, X‐ray photoelectron spectroscopy, infrared spectroscopy, contact angle, thermogravimetric analysis, X‐ray diffraction, and atomic force microscopy. Spectroscopy demonstrates that 0.11 g/g (11 wt %) PMMA is grafted from the CNC surface, giving PMMA‐g‐CNCs, which are similar in size and crystallinity to unmodified CNCs but have an onset of thermal degradation 45 °C lower. Nanocomposites were prepared by compounding unmodified CNCs and PMMA‐g‐CNCs (0.0025–0.02 g/g (0.25–2 wt %) loading) with PMMA using melt mixing and wet ball milling. CNCs improved the performance of melt‐mixed nanocomposites at 0.02 g/g (2 wt %) loading compared to the PMMA control, while lower loadings of CNCs and all loadings of PMMA‐g‐CNCs did not. The difference in Young's modulus between unmodified CNC and polymer‐grafted CNC composites was generally insignificant. Overall, ball‐milled composites had inferior mechanical and rheological properties compared to melt‐mixed composites. Scanning electron microscopy showed aggregation in the samples with CNCs, but more pronounced aggregation with PMMA‐g‐CNCs. Despite improving interfacial compatibility between the nanoparticles and the matrix, the effect of PMMA‐g‐CNC aggregation and decreased thermal stability dominated the composite performance.

A Computational and Experimental Approach Linking Disorder, High-Pressure Behavior, and Mechanical Properties in UiO Frameworks.

Whilst many metal–organic frameworks possess the chemical stability needed to be used as functional materials, they often lack the physical strength required for industrial applications. Herein, we have investigated the mechanical properties of two UiO‐topology Zr‐MOFs, the planar UiO‐67 ([Zr6O4(OH)4(bpdc)6], bpdc: 4,4′‐biphenyl dicarboxylate) and UiO‐abdc ([Zr6O4(OH)4(abdc)6], abdc: 4,4′‐azobenzene dicarboxylate) by single‐crystal nanoindentation, high‐pressure X‐ray diffraction, density functional theory calculations, and first‐principles molecular dynamics. On increasing pressure, both UiO‐67 and UiO‐abdc were found to be incompressible when filled with methanol molecules within a diamond anvil cell. Stabilization in both cases is attributed to dynamical linker disorder. The diazo‐linker of UiO‐abdc possesses local site disorder, which, in conjunction with its longer nature, also decreases the capacity of the framework to compress and stabilizes it against direct compression, compared to UiO‐67, characterized by a large elastic modulus. The use of non‐linear linkers in the synthesis of UiO‐MOFs therefore creates MOFs that have more rigid mechanical properties over a larger pressure range.

A Computational and Experimental Approach Linking Disorder, High‐Pressure Behavior, and Mechanical Properties in UiO Frameworks

AbstractWhilst many metal–organic frameworks possess the chemical stability needed to be used as functional materials, they often lack the physical strength required for industrial applications. Herein, we have investigated the mechanical properties of two UiO‐topology Zr‐MOFs, the planar UiO‐67 ([Zr6O4(OH)4(bpdc)6], bpdc: 4,4′‐biphenyl dicarboxylate) and UiO‐abdc ([Zr6O4(OH)4(abdc)6], abdc: 4,4′‐azobenzene dicarboxylate) by single‐crystal nanoindentation, high‐pressure X‐ray diffraction, density functional theory calculations, and first‐principles molecular dynamics. On increasing pressure, both UiO‐67 and UiO‐abdc were found to be incompressible when filled with methanol molecules within a diamond anvil cell. Stabilization in both cases is attributed to dynamical linker disorder. The diazo‐linker of UiO‐abdc possesses local site disorder, which, in conjunction with its longer nature, also decreases the capacity of the framework to compress and stabilizes it against direct compression, compared to UiO‐67, characterized by a large elastic modulus. The use of non‐linear linkers in the synthesis of UiO‐MOFs therefore creates MOFs that have more rigid mechanical properties over a larger pressure range.