Abstract
Two new types of oxide fibers, namely, those of single crystalline yttrium-aluminum perovskite YAlO3 (YAP) and two-phase YAlO3-Y4Al2O9 (YAP-YAM), have been grown by the internal crystallization method. The fibers of the second type retain their strength at temperatures up to 1000 °C. Their effective strength in a molybdenum matrix reaches about 600 MPa at a temperature of 1400 °C.
Highlights
Future techniques for energy production call for novel families of heat-resistant materials
A number of techniques have been developed within the last half century to crystallize oxide fibers from the melt, such as Edge Feed Growth (EFG) [4], Laser Heated Pedestal Growth (LHPG) [5], and micro-pulling-down [6]
The fabrication technique, microstructure and the strength of a new fiber based on yttrium-aluminum perovskite (YAP) are described
Summary
Future techniques for energy production call for novel families of heat-resistant materials. A number of techniques have been developed within the last half century to crystallize oxide fibers from the melt, such as Edge Feed Growth (EFG) [4], Laser Heated Pedestal Growth (LHPG) [5], and micro-pulling-down [6]. These techniques allow for the production of fibers of the perfect microstructure necessary for optical and electronic application. The fabrication technique, microstructure and the strength of a new fiber based on yttrium-aluminum perovskite (YAP) are described.
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