A Preliminary Investigation of Improving Breakability of Ruby
Zhu Guangyong (Shanghai No. 1 Glass Apparatus Factory)
Breakability of ruby is discussed and the following methods of reducing stress are proposed:1. taking angle ρ included between optical axis and growing axis as 57°; taking angle ψ included between L2 and cutting face as 25°~30°,2. using purified dry and alkali-free oxygen,3. using highly pare raw materials,4. keeping technological condition reasonable and equipment stable.