Microstructure and Strength of Al
2
O
3
/Al
2
O
3
Joints Bonded with ZnO-Al
2
O
3
-B
2
O
3
-SiO
2
Glass-Ceramic
Weiwei Zhu, Jichun Chen, Chuanyong Hao, Jinsong Zhang
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Fig. 2. XRD patterns of the glass treated at different temperature: a 780 #cod#x000b0;C; b 920 #cod#x000b0;C; c 1120 #cod#x000b0;C.