fused quartz
Technical term for quartz glass made by melting high-purity silica. Often used in scientific and industrial contexts. Synonymous with 石英ガラス.
See also: 石英ガラス (せきえいガラス)
Fused quartz is used in semiconductor manufacturing equipment because it withstands high temperatures.
Synonym; 石英ガラス is more common in everyday technical contexts, while 溶融石英 emphasizes the manufacturing process (melting).
Compound of 溶融 (melting) and 石英 (quartz). The term directly describes quartz that has been melted and resolidified into a glassy state.