Microstructure and Faraday effect of Tb 2 O 3 ‐Al 2 O 3 ‐SiO 2 ‐B 2 O 3 glasses for fiber based magneto‐optical applications

Author(s):  
Yeming Zhang ◽  
Shunsuke Murai ◽  
Ayaka Maeno ◽  
Hironori Kaji ◽  
Masahiro Shimizu ◽  
...  
Author(s):  
J. R. Heffelfinger ◽  
C. B. Carter

Transmission-electron microscopy (TEM), scanning-electron microscopy (SEM) and energy-dispersive x-ray spectroscopy (EDS) were used to investigate the solid-state reaction between a thin yttria film and a (0001) α-alumina substrate. Systems containing Y2O3 (yttria) and Al2O3 (alumina) are seen in many technologically relevant applications. For example, yttria is being explored as a coating material for alumina fibers for metal-ceramic composites. The coating serves as a diffusion barrier and protects the alumina fiber from reacting with the metal matrix. With sufficient time and temperature, yttria in contact with alumina will react to form one or a combination of phases shown by the phase diagram in Figure l. Of the reaction phases, yttrium aluminum garnet (YAG) is used as a material for lasers and other optical applications. In a different application, YAG is formed as a secondary phase in the sintering of AIN. Yttria is added to AIN as a sintering aid and acts as an oxygen getter by reacting with the alumina in AIN to form YAG.


1973 ◽  
Vol 109 (4) ◽  
pp. 667 ◽  
Author(s):  
Yu.I. Ukhanov
Keyword(s):  

2010 ◽  
Author(s):  
Fred Semendy ◽  
Patrick Taylor ◽  
Gregory Meissner ◽  
Priyalal Wijewarnasuriya

2013 ◽  
Vol 87 (3) ◽  
Author(s):  
Jacek Szczytko ◽  
Nataša Vaupotič ◽  
Karolina Madrak ◽  
Paweł Sznajder ◽  
Ewa Górecka

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