CN106365638B - 一种基于纳米蒙特土的高韧陶瓷材料及其制备方法 - Google Patents

一种基于纳米蒙特土的高韧陶瓷材料及其制备方法 Download PDF

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CN106365638B
CN106365638B CN201610792270.XA CN201610792270A CN106365638B CN 106365638 B CN106365638 B CN 106365638B CN 201610792270 A CN201610792270 A CN 201610792270A CN 106365638 B CN106365638 B CN 106365638B
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阮丽丽
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Hunan Lake Electric Power Equipment Co., Ltd.
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Abstract

本发明公开了一种基于纳米蒙特土的高韧陶瓷材料及其制备方法，通过如下重量份的原料制备而成：纳米碳化钛，35‑45份；纳米氮化钛，30‑40份；纳米碳化硅，25‑35份；改性纳米蒙特土，20‑30份；方解石粉，5‑15份；去离子水，8‑12份；聚乙二醇，6‑10份；硅烷偶联剂KH560，3‑5份；丙烯酸，2‑4份；所述改性纳米蒙特土的制备方法为：将纳米蒙特土放入甲酸水溶液中，纳米蒙特土与甲酸水溶液的体积比为1:1.4‑1.6，所述甲酸水溶液的pH为3.0‑3.4，浸泡6‑8小时，随后倒去甲酸水溶液，用水将纳米蒙特土洗成pH为6.6‑7.0，50‑60℃烘干即得。本发明提供的陶瓷材料不仅强度、硬度高，而且韧性高。

Description

一种基于纳米蒙特土的高韧陶瓷材料及其制备方法
技术领域
本发明属于材料领域，具体涉及一种基于纳米蒙特土的高韧陶瓷材料及其制备方法。
背景技术
陶瓷材料是用天然或合成化合物经过成形和高温烧结制成的一类无机非金属材料。它具有高熔点、高硬度、高耐磨性、耐氧化等优点。可用作结构材料、刀具材料，由于陶瓷还具有某些特殊的性能，又可作为功能材料。
陶瓷材料是工程材料中刚度最好、硬度最高的材料，其硬度大多在1500HV以上。陶瓷的抗压强度较高，但抗拉强度较低，塑性和韧性很差。
因此，有必要研究提高陶瓷材料的韧性。
发明内容
本发明的目的在于提供一种基于纳米蒙特土的高韧陶瓷材料及其制备方法。
本发明的上述目的是通过下面的技术方案得以实现的：
一种基于纳米蒙特土的高韧陶瓷材料，通过如下重量份的原料制备而成：纳米碳化钛，35-45份；纳米氮化钛，30-40份；纳米碳化硅，25-35份；改性纳米蒙特土，20-30份；方解石粉，5-15份；去离子水，8-12份；聚乙二醇，6-10份；硅烷偶联剂KH560，3-5份；丙烯酸，2-4份；所述改性纳米蒙特土的制备方法为：将纳米蒙特土放入甲酸水溶液中，纳米蒙特土与甲酸水溶液的体积比为1:1.4-1.6，所述甲酸水溶液的pH为3.0-3.4，浸泡6-8小时，随后倒去甲酸水溶液，用水将纳米蒙特土洗成pH为6.6-7.0，50-60℃烘干即得。
优选地，所述改性纳米蒙特土的制备方法为：将纳米蒙特土放入甲酸水溶液中，纳米蒙特土与甲酸水溶液的体积比为1:1.5，所述甲酸水溶液的pH为3.2，浸泡7小时，随后倒去甲酸水溶液，用水将纳米蒙特土洗成pH为6.8，55℃烘干即得。
优选地，所述的高韧陶瓷材料通过如下重量份的原料制成：纳米碳化钛，40份；纳米氮化钛，35份；纳米碳化硅，30份；改性纳米蒙特土，25份；方解石粉，10份；去离子水，10份；聚乙二醇，8份；硅烷偶联剂KH560，4份；丙烯酸，3份。
优选地，所述的高韧陶瓷材料通过如下重量份的原料制成：纳米碳化钛，35份；纳米氮化钛，30份；纳米碳化硅，25份；改性纳米蒙特土，20份；方解石粉，5份；去离子水，8份；聚乙二醇，6份；硅烷偶联剂KH560，3份；丙烯酸，2份。
优选地，所述的高韧陶瓷材料通过如下重量份的原料制成：纳米碳化钛，45份；纳米氮化钛，40份；纳米碳化硅，35份；改性纳米蒙特土，30份；方解石粉，15份；去离子水，12份；聚乙二醇，10份；硅烷偶联剂KH560，5份；丙烯酸，4份。
上述高韧陶瓷材料的制备方法，包括如下步骤：
步骤S1，将纳米碳化钛、纳米氮化钛、纳米碳化硅、改性纳米蒙特土和方解石粉混合球磨后过200-300目筛，850-950℃煅烧0.5-1.5小时，得混合颗粒；
步骤S2，向步骤S1所得混合颗粒中加入剩余物料后球磨至混合均匀，120-140℃烘干；
步骤S3，1650-1750℃下热压，热压压力为25-35MPa，热压时间为50-60分钟。
本发明的优点：
本发明提供的陶瓷材料不仅强度、硬度高，而且韧性高，取得了突出的效果。
具体实施方式
下面结合实施例进一步说明本发明的实质性内容，但并不以此限定本发明保护范围。尽管参照较佳实施例对本发明作了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的实质和范围。
实施例1：高韧陶瓷材料的制备
通过如下重量份的原料制备而成：纳米碳化钛，40份；纳米氮化钛，35份；纳米碳化硅，30份；改性纳米蒙特土，25份；方解石粉，10份；去离子水，10份；聚乙二醇，8份；硅烷偶联剂KH560，4份；丙烯酸，3份。
其中，所述改性纳米蒙特土的制备方法为：将纳米蒙特土放入甲酸水溶液中，纳米蒙特土与甲酸水溶液的体积比为1:1.5，所述甲酸水溶液的pH为3.2，浸泡7小时，随后倒去甲酸水溶液，用水将纳米蒙特土洗成pH为6.8，55℃烘干即得。
高韧陶瓷材料的制备方法包括如下步骤：
步骤S1，将纳米碳化钛、纳米氮化钛、纳米碳化硅、改性纳米蒙特土和方解石粉混合球磨后过250目筛，900℃煅烧1小时，得混合颗粒；
步骤S2，向步骤S1所得混合颗粒中加入剩余物料后球磨至混合均匀，130℃烘干；
步骤S3，1700℃下热压，热压压力为30MPa，热压时间为55分钟。
实施例2：高韧陶瓷材料的制备
通过如下重量份的原料制备而成：纳米碳化钛，35份；纳米氮化钛，30份；纳米碳化硅，25份；改性纳米蒙特土，20份；方解石粉，5份；去离子水，8份；聚乙二醇，6份；硅烷偶联剂KH560，3份；丙烯酸，2份。
其中，所述改性纳米蒙特土的制备方法为：将纳米蒙特土放入甲酸水溶液中，纳米蒙特土与甲酸水溶液的体积比为1:1.5，所述甲酸水溶液的pH为3.2，浸泡7小时，随后倒去甲酸水溶液，用水将纳米蒙特土洗成pH为6.8，55℃烘干即得。
高韧陶瓷材料的制备方法包括如下步骤：
步骤S1，将纳米碳化钛、纳米氮化钛、纳米碳化硅、改性纳米蒙特土和方解石粉混合球磨后过250目筛，900℃煅烧1小时，得混合颗粒；
步骤S2，向步骤S1所得混合颗粒中加入剩余物料后球磨至混合均匀，130℃烘干；
步骤S3，1700℃下热压，热压压力为30MPa，热压时间为55分钟。
实施例3：高韧陶瓷材料的制备
通过如下重量份的原料制备而成：纳米碳化钛，45份；纳米氮化钛，40份；纳米碳化硅，35份；改性纳米蒙特土，30份；方解石粉，15份；去离子水，12份；聚乙二醇，10份；硅烷偶联剂KH560，5份；丙烯酸，4份。
其中，所述改性纳米蒙特土的制备方法为：将纳米蒙特土放入甲酸水溶液中，纳米蒙特土与甲酸水溶液的体积比为1:1.5，所述甲酸水溶液的pH为3.2，浸泡7小时，随后倒去甲酸水溶液，用水将纳米蒙特土洗成pH为6.8，55℃烘干即得。
高韧陶瓷材料的制备方法包括如下步骤：
步骤S1，将纳米碳化钛、纳米氮化钛、纳米碳化硅、改性纳米蒙特土和方解石粉混合球磨后过250目筛，900℃煅烧1小时，得混合颗粒；
步骤S2，向步骤S1所得混合颗粒中加入剩余物料后球磨至混合均匀，130℃烘干；
步骤S3，1700℃下热压，热压压力为30MPa，热压时间为55分钟。
实施例4：高韧陶瓷材料的制备
通过如下重量份的原料制备而成：纳米碳化钛，40份；纳米氮化钛，35份；纳米碳化硅，30份；改性纳米蒙特土，22份；方解石粉，10份；去离子水，10份；聚乙二醇，8份；硅烷偶联剂KH560，4份；丙烯酸，3份。
其中，所述改性纳米蒙特土的制备方法为：将纳米蒙特土放入甲酸水溶液中，纳米蒙特土与甲酸水溶液的体积比为1:1.5，所述甲酸水溶液的pH为3.2，浸泡7小时，随后倒去甲酸水溶液，用水将纳米蒙特土洗成pH为6.8，55℃烘干即得。
高韧陶瓷材料的制备方法包括如下步骤：
步骤S1，将纳米碳化钛、纳米氮化钛、纳米碳化硅、改性纳米蒙特土和方解石粉混合球磨后过250目筛，900℃煅烧1小时，得混合颗粒；
步骤S2，向步骤S1所得混合颗粒中加入剩余物料后球磨至混合均匀，130℃烘干；
步骤S3，1700℃下热压，热压压力为30MPa，热压时间为55分钟。
实施例5：高韧陶瓷材料的制备
通过如下重量份的原料制备而成：纳米碳化钛，40份；纳米氮化钛，35份；纳米碳化硅，30份；改性纳米蒙特土，28份；方解石粉，10份；去离子水，10份；聚乙二醇，8份；硅烷偶联剂KH560，4份；丙烯酸，3份。
其中，所述改性纳米蒙特土的制备方法为：将纳米蒙特土放入甲酸水溶液中，纳米蒙特土与甲酸水溶液的体积比为1:1.5，所述甲酸水溶液的pH为3.2，浸泡7小时，随后倒去甲酸水溶液，用水将纳米蒙特土洗成pH为6.8，55℃烘干即得。
高韧陶瓷材料的制备方法包括如下步骤：
步骤S1，将纳米碳化钛、纳米氮化钛、纳米碳化硅、改性纳米蒙特土和方解石粉混合球磨后过250目筛，900℃煅烧1小时，得混合颗粒；
步骤S2，向步骤S1所得混合颗粒中加入剩余物料后球磨至混合均匀，130℃烘干；
步骤S3，1700℃下热压，热压压力为30MPa，热压时间为55分钟。
实施例6：对比实施例，纳米蒙特土不改性
通过如下重量份的原料制备而成：纳米碳化钛，40份；纳米氮化钛，35份；纳米碳化硅，30份；纳米蒙特土，25份；方解石粉，10份；去离子水，10份；聚乙二醇，8份；硅烷偶联剂KH560，4份；丙烯酸，3份。
高韧陶瓷材料的制备方法包括如下步骤：
步骤S1，将纳米碳化钛、纳米氮化钛、纳米碳化硅、纳米蒙特土和方解石粉混合球磨后过250目筛，900℃煅烧1小时，得混合颗粒；
步骤S2，向步骤S1所得混合颗粒中加入剩余物料后球磨至混合均匀，130℃烘干；
步骤S3，1700℃下热压，热压压力为30MPa，热压时间为55分钟。
实施例7：效果实施例
分别测试实施例1-6制备的陶瓷材料的硬度、强度和韧度，结果见下表：
维氏硬度(GPa) 抗弯强度(MPa) 断裂韧度(MPa·m<sup>1/2</sup>)
实施例1 112 1215 17
实施例6 104 1180 8
实施例2-5与实施例1基本一致，不再一一罗列。
结果表明，本发明提供的陶瓷材料不仅强度、硬度高，而且韧性高。
上述实施例的作用在于说明本发明的实质性内容，但并不以此限定本发明的保护范围。本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的实质和保护范围。

Claims (5)

1.一种基于纳米蒙特土的高韧陶瓷材料，其特征在于，通过如下重量份的原料制备而成：纳米碳化钛，35-45份；纳米氮化钛，30-40份；纳米碳化硅，25-35份；改性纳米蒙特土，20-30份；方解石粉，5-15份；去离子水，8-12份；聚乙二醇，6-10份；硅烷偶联剂KH560，3-5份；丙烯酸，2-4份；所述改性纳米蒙特土的制备方法为：将纳米蒙特土放入甲酸水溶液中，纳米蒙特土与甲酸水溶液的体积比为1:1.4-1.6，所述甲酸水溶液的pH为3.0-3.4，浸泡6-8小时，随后倒去甲酸水溶液，用水将纳米蒙特土洗成pH为6.6-7.0，50-60℃烘干即得；所述高韧陶瓷材料的制备方法，包括如下步骤：步骤S1，将纳米碳化钛、纳米氮化钛、纳米碳化硅、改性纳米蒙特土和方解石粉混合球 磨后过200-300目筛，850-950℃煅烧0.5-1.5小时，得混合颗粒；步骤S2，向步骤S1所得混合颗粒中加入剩余物料后球磨至混合均匀，120-140℃烘干；步骤S3，1650-1750℃下热压，热压压力为25-35MPa，热压时间为50-60分钟。
2.根据权利要求1所述的高韧陶瓷材料，其特征在于，所述改性纳米蒙特土的制备方法为：将纳米蒙特土放入甲酸水溶液中，纳米蒙特土与甲酸水溶液的体积比为1:1.5，所述甲酸水溶液的pH为3.2，浸泡7小时，随后倒去甲酸水溶液，用水将纳米蒙特土洗成pH为6.8，55℃烘干即得。
3.根据权利要求1所述的高韧陶瓷材料，其特征在于，通过如下重量份的原料制成：纳米碳化钛，40份；纳米氮化钛，35份；纳米碳化硅，30份；改性纳米蒙特土，25份；方解石粉，10份；去离子水，10份；聚乙二醇，8份；硅烷偶联剂KH560，4份；丙烯酸，3份。
4.根据权利要求1所述的高韧陶瓷材料，其特征在于，通过如下重量份的原料制成：纳米碳化钛，35份；纳米氮化钛，30份；纳米碳化硅，25份；改性纳米蒙特土，20份；方解石粉，5份；去离子水，8份；聚乙二醇，6份；硅烷偶联剂KH560，3份；丙烯酸，2份。
5.根据权利要求1所述的高韧陶瓷材料，其特征在于，通过如下重量份的原料制成：纳米碳化钛，45份；纳米氮化钛，40份；纳米碳化硅，35份；改性纳米蒙特土，30份；方解石粉，15份；去离子水，12份；聚乙二醇，10份；硅烷偶联剂KH560，5份；丙烯酸，4份。
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