Abstract
Barium chlorapatite [Ba 5Cl(PO 4) 3] and strontium chlorapatite [Sr 5Cl(PO 4) 3] crystals were grown from a sodium chloride flux. The aspect ratios for these crystals were distributed in the range 1–9, and maximum number of crystals was observed in the range 3–4 for both chlorapatite crystals. The contact angle of water on (1 0 1̄ 0) face of each chlorapatite crystal was observed using a modified Wilhelmy method, where the change of liquid weight was measured instead of the crystal weight. The contact angle depends on the aspect ratio of the crystal. Both the advancing and the receding contact angles showed maximum value when the aspect ratios of the crystals were approximately 4 for both Ba 5Cl(PO 4) 3 and Sr 5Cl(PO 4) 3 crystals. The specific surface free energy of (1 0 1̄ 0) face was calculated using Neumann’s equation. The (1 0 1̄ 0) face of the crystals of the aspect ratio 4 has a minimum specific surface free energy, indicating that they have the most stable (1 0 1̄ 0) face when the aspect ratio is 4.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
