In 1906 it was proposed s for the manufacture of crucibles in which rock-crystal (quartz) is fused for the preparation of quartz-glass, since zirconia is not attacked by molten silica. It promises to be of the greatest use in all cases where a very refractory... The Rare Earths: Their Occurrence, Chemistry, and Technology - Стр. 324 авторы: Stanley Isaac Levy - 1915 - Страниц: 345 Полный просмотр -
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