发明授权
US4835121A Infrared transparent glass ceramic articles with beta-quarts solid
solution crystals without any other crystals
失效
红外透明玻璃陶瓷制品,具有β-quarts固溶体晶体,无任何其他晶体
- 专利标题: Infrared transparent glass ceramic articles with beta-quarts solid solution crystals without any other crystals
- 专利标题(中): 红外透明玻璃陶瓷制品,具有β-quarts固溶体晶体,无任何其他晶体
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申请号: US11298申请日: 1987-02-04
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公开(公告)号: US4835121A公开(公告)日: 1989-05-30
- 发明人: Takehiro Shibuya , Kazuhiro Matsui , Makoto Matsumoto
- 申请人: Takehiro Shibuya , Kazuhiro Matsui , Makoto Matsumoto
- 申请人地址: JPX Otsu
- 专利权人: Nippon Electric Glass Company, Limited
- 当前专利权人: Nippon Electric Glass Company, Limited
- 当前专利权人地址: JPX Otsu
- 优先权: JPX61-22103 19860205
- 主分类号: C03C3/085
- IPC分类号: C03C3/085 ; C03C4/10 ; C03C10/00 ; C03C10/14 ; H05B3/74
摘要:
An infrared transparent glass ceramic article is useful for top plates of cooking stoves and has a black appearance but an infrared transmittance of about 80% or more for an infrared light of a wavelength 1,500 nm, and .beta.-quartz solid solution crystals substantially alone dispersed within glassy matrix without any other crystals. The article consists essentially, by weight, of 60-72% SiO.sub.2, 14-28% Al.sub.2 O.sub.3, 2.5-5.5% Li.sub.2 O, 0.1-0.9% MgO, 0.1-0.9% ZnO, 3-6% TiO.sub.2, 0.03-0.5% V.sub.2 O.sub.5, 0.1-1% Na.sub.2 O, 0-1% K.sub.2 O, 0-2% CaO, 0-2% BaO, 0-2% PbO, 0-2% As.sub.2 O.sub.3, 0-3% ZrO.sub.2, and 0-3% P.sub.d O.sub.5. The article is produced by forming a desired shape of glass article having the ingredients, heating the glass article at a temperature of 650.degree.-800.degree. C. to nucleate in the glass, heating the glass article at a temperature of 800.degree.-950.degree. C. to thereby precipitate .beta.-quartz solid solution crystals alone in the glass, and cooling the article to the room temperature.
公开/授权文献
- USD356303S Enclosure for interactive display 公开/授权日:1995-03-14
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