CN106673668A - 一种氮化硅陶瓷及其制备方法 - Google Patents

一种氮化硅陶瓷及其制备方法 Download PDF

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CN106673668A
CN106673668A CN201611151978.3A CN201611151978A CN106673668A CN 106673668 A CN106673668 A CN 106673668A CN 201611151978 A CN201611151978 A CN 201611151978A CN 106673668 A CN106673668 A CN 106673668A
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silicon nitride
silicon
nitride ceramic
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徐叶新
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Yixing Well Technology Co Ltd
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Yixing Well Technology Co Ltd
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    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
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Abstract

本发明公开了一种氮化硅陶瓷，包括以下重量份数的组分：40~60份的硅、30~40份的二氧化硅、80~120份的氮化硅、10~20份的氧化铝、10~20份的氧化镁、30~50份的氧化锆和10~15份的添加剂。同时，本发明还公开了上述氮化硅陶瓷的制备方法。本发明与传统技术相比，通过对原料进行筛选，不带入任何重金属离子，从而保证烧制温度能够控制1400℃以下，节约了能源和生产成本。

Description

一种氮化硅陶瓷及其制备方法
技术领域
本发明属于高性能功能陶瓷制造领域，具体涉及一种氮化硅陶瓷及其制备方法。
背景技术
氮化硅陶瓷热膨胀系数低、导热率高，故其耐热冲击性极佳，而且比钢和工程超耐热合金钢轻得多，因此在耐火材料领域越来越受到青睐。传统的氮化硅陶瓷含有一定量的重金属元素（如镍、锡等），这影响了烧制时的温度控制，需要将温度控制在一个高位（大于1500℃）才能使陶瓷在烧制时完全液态化，从而保证陶瓷的理化性质达到预期。
发明内容
发明目的：本发明的目的在于针对现有技术的不足，提供一种氮化硅陶瓷。
本发明的另一目的在于提供上述氮化硅陶瓷的制备方法。
技术方案：为了达到上述发明目的，本发明具体是这样来完成的：一种氮化硅陶瓷，包括以下重量份数的组分：40~60份的硅、30~40份的二氧化硅、80~120份的氮化硅、10~20份的氧化铝、10~20份的氧化镁、30~50份的氧化锆和10~15份的添加剂。
其中，所述添加剂为由高岭土、膨润土、石英石和水按重量比3：2：2：1搅拌混合，所述高岭土、膨润土、石英石的细度均在100目以内。
一种制备氮化硅陶瓷的方法，将各原料按配比混合，室温下搅拌30~40分钟，1~2天晾干，后送进窑炉在1200~1400℃下烧制24~36小时。
有益效果：本发明与传统技术相比，通过对原料进行筛选，不带入任何重金属离子，从而保证烧制温度能够控制1400℃以下，节约了能源和生产成本。
具体实施方式
实施例1：
取重量份数为40份的硅、30份的二氧化硅、80份的氮化硅、10份的氧化铝、10份的氧化镁、30份的氧化锆和10份的添加剂混合，室温下搅拌30~40分钟，1~2天晾干，后送进窑炉在1200~1400℃下烧制24~36小时；所述高岭土、膨润土、石英石和水按重量比3：2：2：1搅拌混合。
实施例2：
取重量份数为60份的硅、40份的二氧化硅、120份的氮化硅、20份的氧化铝、20份的氧化镁、50份的氧化锆和15份的添加剂混合，室温下搅拌30~40分钟，1~2天晾干，后送进窑炉在1200~1400℃下烧制24~36小时；所述高岭土、膨润土、石英石和水按重量比3：2：2：1搅拌混合。
实施例3：
取重量份数为50份的硅、35份的二氧化硅、100份的氮化硅、15份的氧化铝、15份的氧化镁、40份的氧化锆和10份的添加剂混合，室温下搅拌30~40分钟，1~2天晾干，后送进窑炉在1200~1400℃下烧制24~36小时；所述高岭土、膨润土、石英石和水按重量比3：2：2：1搅拌混合。
实施例4：
取重量份数为45份的硅、40份的二氧化硅、110份的氮化硅、20份的氧化铝、10份的氧化镁、35份的氧化锆和13份的添加剂混合，室温下搅拌30~40分钟，1~2天晾干，后送进窑炉在1200~1400℃下烧制24~36小时；所述高岭土、膨润土、石英石和水按重量比3：2：2：1搅拌混合。
实施例5：
取重量份数为55份的硅、30份的二氧化硅、90份的氮化硅、10份的氧化铝、20份的氧化镁、45份的氧化锆和12份的添加剂混合，室温下搅拌30~40分钟，1~2天晾干，后送进窑炉在1200~1400℃下烧制24~36小时；所述高岭土、膨润土、石英石和水按重量比3：2：2：1搅拌混合。

Claims (4)

1.一种氮化硅陶瓷，其特征在于，包括以下重量份数的组分：40~60份的硅、30~40份的二氧化硅、80~120份的氮化硅、10~20份的氧化铝、10~20份的氧化镁、30~50份的氧化锆和10~15份的添加剂。
2.根据权利要求1所述的氮化硅陶瓷，其特征在于，所述添加剂为由高岭土、膨润土、石英石和水按重量比3：2：2：1搅拌混合。
3.根据权利要求2所述的氮化硅陶瓷，其特征在于，所述高岭土、膨润土、石英石的细度均在100目以内。
4.一种制备氮化硅陶瓷的方法，其特征在于，将各原料按配比混合，室温下搅拌30~40分钟，1~2天晾干，后送进窑炉在1200~1400℃下烧制24~36小时。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107840663A (zh) * 2017-12-23 2018-03-27 洛阳名力科技开发有限公司 一种氮化硅陶瓷
CN108276009A (zh) * 2018-01-24 2018-07-13 合肥铭佑高温技术有限公司 一种高温耐火材料及制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101475393A (zh) * 2009-01-21 2009-07-08 北京中材人工晶体有限公司 用于连接氮化硅陶瓷的组合物及方法
CN105016738A (zh) * 2014-04-30 2015-11-04 广东工业大学 氮化硅陶瓷及其制备方法
CN105541341A (zh) * 2016-01-12 2016-05-04 河北高富氮化硅材料有限公司 一种添加复合助剂制备高致密度氮化硅陶瓷的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101475393A (zh) * 2009-01-21 2009-07-08 北京中材人工晶体有限公司 用于连接氮化硅陶瓷的组合物及方法
CN105016738A (zh) * 2014-04-30 2015-11-04 广东工业大学 氮化硅陶瓷及其制备方法
CN105541341A (zh) * 2016-01-12 2016-05-04 河北高富氮化硅材料有限公司 一种添加复合助剂制备高致密度氮化硅陶瓷的方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107840663A (zh) * 2017-12-23 2018-03-27 洛阳名力科技开发有限公司 一种氮化硅陶瓷
CN108276009A (zh) * 2018-01-24 2018-07-13 合肥铭佑高温技术有限公司 一种高温耐火材料及制备方法

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Application publication date: 20170517