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Method for preparing high-orientation heat conduction h-BN-based ceramic material based on 3D printing technology
The invention relates to the technical field of ceramic materials, and discloses a method for preparing a high-orientation heat conduction h-BN-based ceramic material based on a 3D printing technology, which comprises the following steps: 1, weighing HDDA, THFA, PUFA and a ceramic material according to mass fraction, and mixing to obtain ceramic slurry; step 2, placing the ceramic slurry on a 3D printer platform, enabling the ceramic slurry to pass through a scraper to form a slurry film, and carrying out ultraviolet curing treatment to obtain a single-layer ceramic green body; step 3, repeating the step 2 until a required ceramic body is obtained; step 4, heating and degreasing the ceramic green body; and step 5, carrying out hot pressing sintering to obtain the h-BN-based ceramic material with high directional thermal conductivity. The ceramic material is prepared through primary rearrangement of h-BN particles in the printing process and secondary rearrangement in the hot-pressing sintering process, the structural material has the characteristic of grain directional arrangement on the microcosmic scale, the lamellar structure of h-BN grains is combined, then the ceramic materialhas the characteristic of directional heat conduction, and the capacity of directional heat transmission can be effectively improved.
本发明涉及陶瓷材料技术领域，公开了一种基于3D打印技术制备高定向导热h－BN基陶瓷材料的方法，包括以下步骤，步骤一，按照质量分数称取HDDA、THFA、PUA、陶瓷材料混合后得到陶瓷浆料；步骤二，将陶瓷浆料放置在3D打印机平台上，使陶瓷浆料经过刮刀后形成浆料膜，用紫外光固化处理，得到单层的陶瓷坯体；步骤三，重复步骤二，直至获得需要的陶瓷坯体；步骤四，将陶瓷坯体进行升温脱脂；步骤五，热压烧结，得到高定向导热h－BN基陶瓷材料。在打印过程中实现h－BN颗粒的初步重排和热压烧结过程中的二次重排而制成，结构材料在微观尺度上呈现晶粒定向排列的特征，结合h－BN晶粒的层片状结构，进而使陶瓷材料呈现定向导热的特征，可以有效的提高热量定向传输的能力。
Method for preparing high-orientation heat conduction h-BN-based ceramic material based on 3D printing technology
The invention relates to the technical field of ceramic materials, and discloses a method for preparing a high-orientation heat conduction h-BN-based ceramic material based on a 3D printing technology, which comprises the following steps: 1, weighing HDDA, THFA, PUFA and a ceramic material according to mass fraction, and mixing to obtain ceramic slurry; step 2, placing the ceramic slurry on a 3D printer platform, enabling the ceramic slurry to pass through a scraper to form a slurry film, and carrying out ultraviolet curing treatment to obtain a single-layer ceramic green body; step 3, repeating the step 2 until a required ceramic body is obtained; step 4, heating and degreasing the ceramic green body; and step 5, carrying out hot pressing sintering to obtain the h-BN-based ceramic material with high directional thermal conductivity. The ceramic material is prepared through primary rearrangement of h-BN particles in the printing process and secondary rearrangement in the hot-pressing sintering process, the structural material has the characteristic of grain directional arrangement on the microcosmic scale, the lamellar structure of h-BN grains is combined, then the ceramic materialhas the characteristic of directional heat conduction, and the capacity of directional heat transmission can be effectively improved.
本发明涉及陶瓷材料技术领域，公开了一种基于3D打印技术制备高定向导热h－BN基陶瓷材料的方法，包括以下步骤，步骤一，按照质量分数称取HDDA、THFA、PUA、陶瓷材料混合后得到陶瓷浆料；步骤二，将陶瓷浆料放置在3D打印机平台上，使陶瓷浆料经过刮刀后形成浆料膜，用紫外光固化处理，得到单层的陶瓷坯体；步骤三，重复步骤二，直至获得需要的陶瓷坯体；步骤四，将陶瓷坯体进行升温脱脂；步骤五，热压烧结，得到高定向导热h－BN基陶瓷材料。在打印过程中实现h－BN颗粒的初步重排和热压烧结过程中的二次重排而制成，结构材料在微观尺度上呈现晶粒定向排列的特征，结合h－BN晶粒的层片状结构，进而使陶瓷材料呈现定向导热的特征，可以有效的提高热量定向传输的能力。
Method for preparing high-orientation heat conduction h-BN-based ceramic material based on 3D printing technology
基于3D打印技术制备高定向导热h-BN基陶瓷材料的方法
TIAN ZHUO (author) / FENG XIAOWEI (author) / LU JIANNING (author) / WANG HAIYAN (author) / WANG JUAN (author)
2021-02-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
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