Энсолл2026-09-07Т10:44:38+08:00
Основные выводы
Промышленный сапфир — это корунд (Al2O3) — natural or synthetic — that does not reach decorative gem grade and is instead used for its hardness, temperature resistance and insulation.
It serves two main purposes: substrate materials such as LED semiconductor substrates, and window materials for watch dials, aerospace and precision manufacturing.
Its value comes from corundum's property set: high temperature and corrosion resistance, Высокая прочность, по шкале Мооса 9 твёрдость, Износостойкость, electrical insulation and hermeticity.
The processing chain runs seed crystal, growth, ориентация, boule,...