CN106145904A - 一种耐腐蚀复合陶瓷导热材料及其制备方法 - Google Patents

一种耐腐蚀复合陶瓷导热材料及其制备方法 Download PDF

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CN106145904A
CN106145904A CN201610529340.2A CN201610529340A CN106145904A CN 106145904 A CN106145904 A CN 106145904A CN 201610529340 A CN201610529340 A CN 201610529340A CN 106145904 A CN106145904 A CN 106145904A
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马健健
宋从发
汪六
汪六一
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Anhui Zhibo New Material Technology Co Ltd
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Abstract

一种耐腐蚀复合陶瓷导热材料及其制备方法，该材料包括以下重量份组分：氧化铍陶瓷粉38‑46份、碳化铬粉22‑26份、二硼化锆粉22‑26份、氮化钛粉14‑20份、银‑氧化镉粉3‑5份、氧化钙粉6‑10份、硼化铌粉1‑2份、氧化锰粉4‑6份、黏土4‑6份。本发明导热材料导热性能非常高，抗热震性好，能耐受酸碱、盐雾的侵蚀，适合于腐蚀性流体换热使用，而且表面不易结垢，表面能与流体形成湍流层，使得散热效果更好，本发明导热材料的耐低温性能较差，不适合在0℃以下温度使用。

Description

一种耐腐蚀复合陶瓷导热材料及其制备方法
技术领域
本发明涉及陶瓷材料制备技术领域，具体涉及一种耐腐蚀复合陶瓷导热材料及其制备方法。
背景技术
随着经济的发展，人们对材料的需求越来越旺盛，特别是新型材料的出现更是层出不穷的出现，以满足社会需求。21世纪就是能源的世纪，随着社会的前进，能源的需求越来越大，从而伴随着导热材料的大量需求。目前的导热材料大都存在导热性能不稳定、耐腐蚀性差、寿命短等问题。
发明内容
本发明所要解决的技术问题在于提供一种耐腐蚀复合陶瓷导热材料，导热材料导热性能非常高，抗热震性好，能耐受酸碱、盐雾的侵蚀，适合于腐蚀性流体换热使用，而且表面不易结垢，表面能与流体形成湍流层，使得散热效果更好，本发明导热材料的耐低温性能较差，不适合在0℃以下温度使用。
本发明另一目的是提供一种耐腐蚀复合陶瓷导热材料制备方法。
一种耐腐蚀复合陶瓷导热材料，包括以下重量份组分：氧化铍陶瓷粉38-46份、碳化铬粉22-26份、二硼化锆粉22-26份、氮化钛粉14-20份、银-氧化镉粉3-5份、氧化钙粉6-10份、硼化铌粉1-2份、氧化锰粉4-6份、黏土4-6份。
一种耐腐蚀复合陶瓷导热材料的制备方法，包括以下步骤：
(1)按重量份秤取氧化铍陶瓷粉、碳化铬粉、二硼化锆粉、氮化钛粉、银-氧化镉粉、氧化钙粉、硼化铌粉、氧化锰粉、黏土，将它们混合均匀；
(2)将混合后的原料通过模具采用压力成型的方法制成板状材料生坯；
(3)将材料生坯置于10％浓度的酸性环境下加热至150℃，然后再对材料生坯利用100-120KHz超声波处理3分钟，接着再按照10℃/分钟的速度加热至295-315℃，并在295-315℃温度下保温30分钟；
(4)将步骤(3)处理后的材料生坯在浓度为85％的富氮环境下烧结，烧结温度1000-1280℃，烧结时间为3-4小时；
(5)将烧结后的导热材料按照15℃/分钟的速度降温至260℃，然后再自然冷却至常温。
所述步骤(3)中超声波处理的超声波频率为110KHz。
所述步骤(3)中再次加热的温度为305℃。
所述步骤(4)中烧结温度为1140℃。
本发明的有益效果是：本发明导热材料导热性能非常高，抗热震性好，能耐受酸碱、盐雾的侵蚀，适合于腐蚀性流体换热使用，而且表面不易结垢，表面能与流体形成湍流层，使得散热效果更好，本发明导热材料的耐低温性能较差，不适合在0℃以下温度使用。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施例，进一步阐述本发明。
实施例1
一种耐腐蚀复合陶瓷导热材料，包括以下重量份组分：氧化铍陶瓷粉42份、碳化铬粉24份、二硼化锆粉24份、氮化钛粉17份、银-氧化镉粉4份、氧化钙粉8份、硼化铌粉1份、氧化锰粉5份、黏土5份。
一种耐腐蚀复合陶瓷导热材料的制备方法，包括以下步骤：
(1)按重量份秤取氧化铍陶瓷粉、碳化铬粉、二硼化锆粉、氮化钛粉、银-氧化镉粉、氧化钙粉、硼化铌粉、氧化锰粉、黏土，将它们混合均匀；
(2)将混合后的原料通过模具采用压力成型的方法制成板状材料生坯；
(3)将材料生坯置于10％浓度的酸性环境下加热至150℃，然后再对材料生坯利用110KHz超声波处理3分钟，接着再按照10℃/分钟的速度加热至305℃，并在305℃温度下保温30分钟；
(4)将步骤(3)处理后的材料生坯在浓度为85％的富氮环境下烧结，烧结温度1140℃，烧结时间为3小时；
(5)将烧结后的导热材料按照15℃/分钟的速度降温至260℃，然后再自然冷却至常温。
实施例2
一种耐腐蚀复合陶瓷导热材料，包括以下重量份组分：氧化铍陶瓷粉38份、碳化铬粉22份、二硼化锆粉22份、氮化钛粉14份、银-氧化镉粉3份、氧化钙粉6份、硼化铌粉1份、氧化锰粉4份、黏土4份。
一种耐腐蚀复合陶瓷导热材料的制备方法，包括以下步骤：
(1)按重量份秤取氧化铍陶瓷粉、碳化铬粉、二硼化锆粉、氮化钛粉、银-氧化镉粉、氧化钙粉、硼化铌粉、氧化锰粉、黏土，将它们混合均匀；
(2)将混合后的原料通过模具采用压力成型的方法制成板状材料生坯；
(3)将材料生坯置于10％浓度的酸性环境下加热至150℃，然后再对材料生坯利用100KHz超声波处理3分钟，接着再按照10℃/分钟的速度加热至295℃，并在295℃温度下保温30分钟；
(4)将步骤(3)处理后的材料生坯在浓度为85％的富氮环境下烧结，烧结温度1000℃，烧结时间为3小时；
(5)将烧结后的导热材料按照15℃/分钟的速度降温至260℃，然后再自然冷却至常温。
实施例3
一种耐腐蚀复合陶瓷导热材料，包括以下重量份组分：氧化铍陶瓷粉46份、碳化铬粉26份、二硼化锆粉26份、氮化钛粉20份、银-氧化镉粉5份、氧化钙粉10份、硼化铌粉2份、氧化锰粉6份、黏土6份。
一种耐腐蚀复合陶瓷导热材料的制备方法，包括以下步骤：
(1)按重量份秤取氧化铍陶瓷粉、碳化铬粉、二硼化锆粉、氮化钛粉、银-氧化镉粉、氧化钙粉、硼化铌粉、氧化锰粉、黏土，将它们混合均匀；
(2)将混合后的原料通过模具采用压力成型的方法制成板状材料生坯；
(3)将材料生坯置于10％浓度的酸性环境下加热至150℃，然后再对材料生坯利用120KHz超声波处理3分钟，接着再按照10℃/分钟的速度加热至315℃，并在295-315℃温度下保温30分钟；
(4)将步骤(3)处理后的材料生坯在浓度为85％的富氮环境下烧结，烧结温度1280℃，烧结时间为4小时；
(5)将烧结后的导热材料按照15℃/分钟的速度降温至260℃，然后再自然冷却至常温。
本发明实施例1、2、3制得的导热材料与市面上普通陶瓷导热材料检测数据对比如下表：
由试验数据可知，本发明的导热材料导热性能稳定，不会受到腐蚀。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (5)

1.一种耐腐蚀复合陶瓷导热材料，其特征在于，包括以下重量份组分：氧化铍陶瓷粉38-46份、碳化铬粉22-26份、二硼化锆粉22-26份、氮化钛粉14-20份、银-氧化镉粉3-5份、氧化钙粉6-10份、硼化铌粉1-2份、氧化锰粉4-6份、黏土4-6份。
2.一种耐腐蚀复合陶瓷导热材料的制备方法，其特征在于，包括以下步骤：
(1)按重量份秤取氧化铍陶瓷粉、碳化铬粉、二硼化锆粉、氮化钛粉、银-氧化镉粉、氧化钙粉、硼化铌粉、氧化锰粉、黏土，将它们混合均匀；
(2)将混合后的原料通过模具采用压力成型的方法制成板状材料生坯；
(3)将材料生坯置于10％浓度的酸性环境下加热至150℃，然后再对材料生坯利用100-120KHz超声波处理3分钟，接着再按照10℃/分钟的速度加热至295-315℃，并在295-315℃温度下保温30分钟；
(4)将步骤(3)处理后的材料生坯在浓度为85％的富氮环境下烧结，烧结温度1000-1280℃，烧结时间为3-4小时；
(5)将烧结后的导热材料按照15℃/分钟的速度降温至260℃，然后再自然冷却至常温。
3.根据权利要求2所述的一种耐腐蚀复合陶瓷导热材料的制备方法，其特征在于，所述步骤(3)中超声波处理的超声波频率为110KHz。
4.根据权利要求2所述的一种耐腐蚀复合陶瓷导热材料的制备方法，其特征在于，所述步骤(3)中再次加热的温度为305℃。
5.根据权利要求2所述的一种耐腐蚀复合陶瓷导热材料的制备方法，其特征在于，所述步骤(4)中烧结温度为1140℃。
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CN101238563A (zh) * 2005-06-07 2008-08-06 莫门蒂夫功能性材料公司 用于制备电子装置的方法
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