Collaborative enhancement of luminous efficacy and fracture toughness based on interface design of Al2O3/YAG:Ce3+ eutectic phosphor ceramic grown by laser floating zone melting

Author(s):  
Yuan Liu ◽  
Haijun Su ◽  
Ze Lu ◽  
Zhonglin Shen ◽  
Yinuo Guo ◽  
...  
1989 ◽  
Vol 169 ◽  
Author(s):  
Y. Shiohara ◽  
T. Oyama ◽  
M. Nakagawa ◽  
T. Suga ◽  
K. Ishige ◽  
...  

AbstractUnidirectional solidification processing, including Floating Zone Melting, Vertical Bridgman, and Laser Zone Melting methods for making high Tc superconducting oxides has been investigated. The effects of processing parameters, growth rate (R) and temperature gradient (G), on texture, morphology, and structures of unidirectionally grown crystals were investigated. Two different crystallization mechanisms were recognized, one is non‐equilibrium phase transformation under high GR conditions, and the other is due to local equilibrium phase transformation under low GR conditions. Strongly aligned structures were obtained at high G/R ratios with low GR value. The interrelation between the superconducting characteristics and textured structure produced were also discussed.


1991 ◽  
Vol 25 (8-9) ◽  
pp. 505-510 ◽  
Author(s):  
W.R. Wilcox ◽  
F.M. Carlson ◽  
D.K. Aidun ◽  
V. White ◽  
W. Rosch ◽  
...  

2001 ◽  
Vol 294 (1-2) ◽  
pp. 202-205 ◽  
Author(s):  
Yuji Arita ◽  
Satoshi Mitsuda ◽  
Yoshimasa Nishi ◽  
Tsuneo Matsui ◽  
Takanori Nagasaki

1975 ◽  
Vol 30 (2) ◽  
pp. 249-256 ◽  
Author(s):  
Eric S. Johnson
Keyword(s):  

2005 ◽  
Vol 475-479 ◽  
pp. 833-836 ◽  
Author(s):  
Yoshisato Kimura ◽  
Kiichi Sakai ◽  
Shinya Teramoto ◽  
Yoshinao Mishima

Aiming for further improvement of mechanical properties of Co3AlC-based heat resistant alloys, microstructure control was conducted using optical floating zone (OFZ) melting. Unidirectional solidification was performed to align Co3AlC/a(Co) two-phase eutectic microstructure. Co3AlC single phase poly-crystal alloys were successfully fabricated for the first time by taking advantage of OFZ. Mechanical properties were evaluated for selected alloys by compression tests at ambient temperature, 1073 K and 1273 K. Excellent elevated temperature strength is achieved in Co3AlC single phase alloys and ductility is sufficiently improved in Co3AlC/a(Co) two-phase alloys.


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