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1. 发明授权

US5677250A Low-temperature lead-free glaze for alumina ceramics 失效
标题翻译：氧化铝陶瓷低温无铅釉
公开(公告)号：US5677250A
公开(公告)日：1997-10-14
申请号：US638152
申请日：1996-04-26
申请人： Randy O. Knapp
发明人： Randy O. Knapp
IPC分类号： C03C3/06 , C03C8/04 , C04B41/50 , C04B41/86 , H01T13/00
CPC分类号： C04B41/009 , C03C3/06 , C03C8/04 , C04B41/5022 , C04B41/86
摘要： A lead-free ceramic glaze comprising, by weight: (i) between about 27 and 35% SiO.sub.2 ; (ii) between about 9 and 15% Al.sub.2 O.sub.3 ; (iii) between about 26 and 34% B.sub.2 O.sub.3 ; (iv) between about 4 and 9% BaO; (v) up to about 2.5% CaO; (vi) between about 3 and 8% SrO; (vii) between about 6 and 12% ZnO; (viii) up to about 1% K.sub.2 O; (ix) between about 1 and 4% Li.sub.2 O; (x) between about 1.5 and 3% Na.sub.2 O; and (xi) balance of minor impurities. Also disclosed are ceramic substrates spray coated with such composition and a method for making a lead-free glaze to a ceramic substrate using lower firing temperatures, on the order of 1550.degree. to 1650.degree. F. (843.degree. to 899.degree. C.).
摘要翻译：一种无铅陶瓷釉料，其包含：（i）约27-35％SiO 2; （ii）约9至15％的Al 2 O 3; （iii）约26至34％的B 2 O 3; （iv）约4至9％的BaO; （v）高达约2.5％的CaO; （vi）约3至8％的SrO; （vii）约6至12％的ZnO; （viii）高达约1％的K2O; （ix）约1至4％Li 2 O; （x）约1.5至3％Na 2 O; 和（xi）少量杂质的平衡。还公开了使用这种组合物喷涂的陶瓷基板和使用较低的烧制温度（1543℃至899℃）使陶瓷基板无铅釉的方法。

2. 发明授权

US4120733A Lead-free glaze for alumina bodies 失效
标题翻译：氧化铝体无铅釉
公开(公告)号：US4120733A
公开(公告)日：1978-10-17
申请号：US856225
申请日：1977-12-01
申请人： Randy O. Knapp
发明人： Randy O. Knapp
IPC分类号： C03C8/04 , C03C5/02
CPC分类号： C03C8/04
摘要： A high-silica ceramic glaze, having a low coefficient of thermal expansion, suitable for application to alumina bodies, is disclosed. The glaze consists essentially, by weight percent, of 48 to 54 percent SiO.sub.2, from 7 to 11 percent Al.sub.2 O.sub.3, from 161/2 to 20 percent B.sub.2 O.sub.3, from 11 to 14 percent BaO, from 2 to 3 percent CaO, from 2 to 21/2 percent ZnO, from 41/4 to 51/4 percent Na.sub.2 O, and from 0.4 to 1 percent K.sub.2 O. Li.sub.2 O and MgO to the extent of up to about 1/4 percent and 1 percent, respectively, can also be tolerated, as can minor amounts of other impurities.
摘要翻译：公开了一种适用于氧化铝体的具有低热膨胀系数的高二氧化硅陶瓷釉。釉料基本上由重量百分比组成为48至54％的SiO 2，7至11％的Al 2 O 3，161/2至20％的B 2 O 3，11至14％的BaO，2至3％的CaO，2至21 / 2％ZnO，41/4〜51/4％Na 2 O，0.4〜1％K 2 O。 Li2O和MgO分别达到约1/4％和1％的程度也是可以容许的，同样可以少量的其他杂质。

3. 发明授权

US5518968A Low-temperature lead-free glaze for alumina ceramics 失效
标题翻译：氧化铝陶瓷低温无铅釉
公开(公告)号：US5518968A
公开(公告)日：1996-05-21
申请号：US323936
申请日：1994-10-17
申请人： Randy O. Knapp
发明人： Randy O. Knapp
IPC分类号： C03C3/06 , C03C8/04 , C04B41/50 , C04B41/86 , C03C3/066
CPC分类号： C04B41/009 , C03C3/06 , C03C8/04 , C04B41/5022 , C04B41/86
摘要： A lead-free ceramic glaze comprising, by weight:(i) between about 27 and 35% SiO.sub.2 ;(ii) between about 9 and 15% Al.sub.2 O.sub.3 ;(iii) between about 26 and 34% B.sub.2 O.sub.3 ;(iv) between about 4 and 9% BaO;(v) up to about 2.5% CaO;(vi) between about 3 and 8% SrO;(vii) between about 6 and 12% ZnO;(viii) up to about 1% K.sub.2 O;(ix) between about 1 and 4% Li.sub.2 O;(x) between about 1.5 and 3% Na.sub.2 O; and(xi) balance of minor impurities.Also disclosed are ceramic substrates spray coated with such composition and a method for making a lead-free glaze to a ceramic substrate using lower firing temperatures, on the order of 1550.degree. to 1650.degree. F. (843.degree. to 899.degree. C.).
摘要翻译：一种无铅陶瓷釉料，其包含：（i）约27-35％SiO 2; （ii）约9至15％的Al 2 O 3; （iii）约26至34％的B 2 O 3; （iv）约4至9％的BaO; （v）高达约2.5％的CaO; （vi）约3至8％的SrO; （vii）约6至12％的ZnO; （viii）高达约1％的K2O; （ix）约1至4％Li 2 O; （x）约1.5至3％Na 2 O; 和（xi）少量杂质的平衡。还公开了使用这种组合物喷涂的陶瓷基板和使用较低的烧制温度（1543℃至899℃）使陶瓷基板无铅釉的方法。

4. 发明授权

US4256497A Lead-free glaze for alumina bodies 失效
标题翻译：氧化铝体无铅釉
公开(公告)号：US4256497A
公开(公告)日：1981-03-17
申请号：US119938
申请日：1980-02-08
申请人： Randy O. Knapp
发明人： Randy O. Knapp
IPC分类号： C03C8/04 , C03C5/02 , C04B33/26
CPC分类号： C03C8/04
摘要： A high-silica ceramic glaze, having a low coefficient of thermal expansion, suitable for application to alumina bodies, is disclosed. The glaze consists essentially, by weight percent, of 35 to 54 percent SiO.sub.2, from 7 to 11 percent Al.sub.2 O.sub.3, from 17 to 25 percent B.sub.2 O.sub.3, from 2 to 3 percent CaO, from 2 to 21/2 percent ZnO, from 41/4 to 5 percent Na.sub.2 O, from 81/2 to 21 percent SrO, and from 0.7 to 1 percent of a mixture of K.sub.2 O, Li.sub.2 O and MgO, and minor impurities.
摘要翻译：公开了一种适用于氧化铝体的具有低热膨胀系数的高二氧化硅陶瓷釉。釉料基本上由重量百分比组成，35至54％的SiO 2，7至11％的Al 2 O 3，17至25％的B 2 O 3，2至3％的CaO，2至21/2％的ZnO，41/4 至5％Na 2 O，81/2至21％SrO和0.7至1％的K 2 O，Li 2 O和MgO的混合物和少量杂质。

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