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High-temperature composite co-fired ceramic structure and preparation method thereof
The invention discloses a high-temperature composite co-fired ceramic structure and a preparation method, the high-temperature composite co-fired ceramic structure comprises a high-temperature ceramic layer and a main body ceramic layer which are sintered into an integrated structure, and the inherent sintering shrinkage rate of a ceramic material of the high-temperature ceramic layer is smaller than that of a ceramic material of the main body ceramic layer. Therefore, the actual sintering shrinkage rate of the co-fired ceramic structure is limited by the actual sintering shrinkage rate of the high-temperature ceramic layer. During high-temperature co-firing, the high-temperature ceramic layer existing in the high-temperature composite co-fired ceramic as a constituent part of a product can be used for limiting the shrinkage of the main body ceramic layer, so that the overall shrinkage of the high-temperature composite co-fired ceramic is adjusted, and the deformation of the high-temperature composite co-fired ceramic is greatly reduced; therefore, the problem of deformation caused by shrinkage of the high-temperature composite co-fired ceramic is effectively solved. The embodiment of the invention has the advantages of simple steps, low cost and suitability for large-scale production, and the purpose of adjusting shrinkage can be achieved without a hot-pressing mode.
本发明公开了一种高温复合共烧陶瓷结构及制备方法,包括烧结成一体结构的高温陶瓷层和主体陶瓷层,所述高温陶瓷层的陶瓷材料的固有烧结收缩率小于所述主体陶瓷层的陶瓷材料的固有烧结收缩率,从而所述共烧陶瓷结构的实际烧结收缩率受到所述高温陶瓷层的实际烧结收缩率的限制。在高温共烧时,本发明能够利用作为产品的组成部分存在于高温复合共烧陶瓷内部的高温陶瓷层限制主体陶瓷层的收缩,使高温复合共烧陶瓷的整体收缩得以调节,大大减少了高温复合共烧陶瓷的变形量,从而有效解决高温复合共烧陶瓷由于收缩导致的变形问题。且本发明实施例步骤简单,不需要辅以热压的方式,即可达到调节收缩的目的,成本低廉,适合大批量规模化生产。
High-temperature composite co-fired ceramic structure and preparation method thereof
The invention discloses a high-temperature composite co-fired ceramic structure and a preparation method, the high-temperature composite co-fired ceramic structure comprises a high-temperature ceramic layer and a main body ceramic layer which are sintered into an integrated structure, and the inherent sintering shrinkage rate of a ceramic material of the high-temperature ceramic layer is smaller than that of a ceramic material of the main body ceramic layer. Therefore, the actual sintering shrinkage rate of the co-fired ceramic structure is limited by the actual sintering shrinkage rate of the high-temperature ceramic layer. During high-temperature co-firing, the high-temperature ceramic layer existing in the high-temperature composite co-fired ceramic as a constituent part of a product can be used for limiting the shrinkage of the main body ceramic layer, so that the overall shrinkage of the high-temperature composite co-fired ceramic is adjusted, and the deformation of the high-temperature composite co-fired ceramic is greatly reduced; therefore, the problem of deformation caused by shrinkage of the high-temperature composite co-fired ceramic is effectively solved. The embodiment of the invention has the advantages of simple steps, low cost and suitability for large-scale production, and the purpose of adjusting shrinkage can be achieved without a hot-pressing mode.
本发明公开了一种高温复合共烧陶瓷结构及制备方法,包括烧结成一体结构的高温陶瓷层和主体陶瓷层,所述高温陶瓷层的陶瓷材料的固有烧结收缩率小于所述主体陶瓷层的陶瓷材料的固有烧结收缩率,从而所述共烧陶瓷结构的实际烧结收缩率受到所述高温陶瓷层的实际烧结收缩率的限制。在高温共烧时,本发明能够利用作为产品的组成部分存在于高温复合共烧陶瓷内部的高温陶瓷层限制主体陶瓷层的收缩,使高温复合共烧陶瓷的整体收缩得以调节,大大减少了高温复合共烧陶瓷的变形量,从而有效解决高温复合共烧陶瓷由于收缩导致的变形问题。且本发明实施例步骤简单,不需要辅以热压的方式,即可达到调节收缩的目的,成本低廉,适合大批量规模化生产。
High-temperature composite co-fired ceramic structure and preparation method thereof
一种高温复合共烧陶瓷结构及制备方法
ZHANG NINGNING (Autor:in) / LI QING (Autor:in) / MAO HAIBO (Autor:in) / HUANG TAO (Autor:in)
31.03.2023
Patent
Elektronische Ressource
Chinesisch
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