Оксинитрид алюминия

У этого термина существуют и другие значения, см. Алон.
Оксинитрид алюминия
Общие
Сокращения ALON
Традиционные названия Оксинитрид алюминия
Хим. формула (AlN)x.(Al2O3)1-x, в молярном соотношении 0,30 ≤ x ≤ 0,37
Физические свойства
Молярная масса 56.9877 г/моль
Плотность 3,688 г/см³
Твёрдость 7,7[1]
Термические свойства
Температура
 • плавления ≈2140 °C
Оптические свойства
Показатель преломления 1,78891
Структура
Кристаллическая структура кубическая
Классификация
Рег. номер CAS 12633-97-5
Приведены данные для стандартных условий (25 °C, 100 кПа), если не указано иное.

Оксинитрид алюминия (AlON) — сплав оксида и нитрида алюминия. Выпускается в виде прозрачной керамической твердой массы под торговой маркой ALON™, патент США № 4520116[2]. Прочнее чем закаленное стекло[источник не указан 1421 день].

Физические свойства

Температура плавления 2150 °C[3]. Твердость по Моосу равна 9.

Изделия, как правило, формируются путём прессовки порошка оксинитрида алюминия. Затем спекаются, путём нагревания в печи под давлением, и полируются до прозрачности. Полировка существенно повышает ударопрочность.

Оптические свойства

  • Показатель преломления: 1,78891
  • Число Аббе: около 60
  • Диапазон светопропускания: 0,25 — 4 мкм.

Применение

Материал используется как важнейший наружный слой экспериментальной прозрачной брони которая разрабатывается ВВС США для окон бронированных машин.[4]

Также применяется в качестве подложек для полупроводниковых интегральных микросхем, для изготовления осветительных приборов.

См. также

Примечания

  1. ↑ https://phys.org/news/2015-04-applications-tough-spinel-ceramic.html
  2. ↑ espacenet - Bibliographic data
  3. ↑ Архивированная копия. Дата обращения: 24 февраля 2011. Архивировано 12 июня 2013 года.
  4. ↑ Air Force testing new transparent armor by Laura Lundin, Air Force Link, October 17, 2005, retrieved June 25, 2008

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