Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramic slurry for additive manufacturing of aluminum nitride ceramic substrate as well as preparation method and application of ceramic slurry
The invention discloses ceramic slurry for additive manufacturing of an aluminum nitride ceramic substrate as well as a preparation method and application of the ceramic slurry, aiming at physical characteristics of aluminum nitride powder, the ceramic slurry for additive manufacturing with good thermal shock resistance and thermal conductivity is prepared by adopting grading of high-purity nitrided powder with different particle sizes and a unique powder surface modification mode. The preparation method comprises the following steps: preparing a ceramic slurry, forming the obtained ceramic slurry by using a photocuring method to obtain a ceramic substrate biscuit with an inner runner, and sintering the ceramic substrate biscuit in an air pressure furnace by using a tool and a powder burying sintering method to obtain the high-thermal-conductivity aluminum nitride-based ceramic substrate with the inner runner. The thermal shock resistance and the heat-conducting property of the aluminum nitride-based ceramic substrate are improved, the production process of the ceramic substrate is accelerated, and the forming difficulty of the aluminum nitride-based ceramic substrate with a complex structure is reduced.
本发明公开了氮化铝陶瓷基板增材制造陶瓷浆料及其制备方法和应用，针对氮化铝粉体的物理特性，采用不同粒径的高纯氮化粉体级配和独特的粉体表面改型方式，制备出了具备良好抗热震性和导热性的增材制造用陶瓷浆料，并使用光固化方法对得到的陶瓷浆料进行成形得到一种带内流道的陶瓷基板素坯，对陶瓷基板素坯采用工装及埋粉烧结方法在气压炉下烧结即可得到一种带内流道的高导热率氮化铝基陶瓷基板，本发明方法简单，提高了氮化铝基陶瓷基板的抗热震性及导热性能，加速了陶瓷基板的生产流程，降低了结构复杂的氮化铝基陶瓷基板成型难度。
Ceramic slurry for additive manufacturing of aluminum nitride ceramic substrate as well as preparation method and application of ceramic slurry
The invention discloses ceramic slurry for additive manufacturing of an aluminum nitride ceramic substrate as well as a preparation method and application of the ceramic slurry, aiming at physical characteristics of aluminum nitride powder, the ceramic slurry for additive manufacturing with good thermal shock resistance and thermal conductivity is prepared by adopting grading of high-purity nitrided powder with different particle sizes and a unique powder surface modification mode. The preparation method comprises the following steps: preparing a ceramic slurry, forming the obtained ceramic slurry by using a photocuring method to obtain a ceramic substrate biscuit with an inner runner, and sintering the ceramic substrate biscuit in an air pressure furnace by using a tool and a powder burying sintering method to obtain the high-thermal-conductivity aluminum nitride-based ceramic substrate with the inner runner. The thermal shock resistance and the heat-conducting property of the aluminum nitride-based ceramic substrate are improved, the production process of the ceramic substrate is accelerated, and the forming difficulty of the aluminum nitride-based ceramic substrate with a complex structure is reduced.
本发明公开了氮化铝陶瓷基板增材制造陶瓷浆料及其制备方法和应用，针对氮化铝粉体的物理特性，采用不同粒径的高纯氮化粉体级配和独特的粉体表面改型方式，制备出了具备良好抗热震性和导热性的增材制造用陶瓷浆料，并使用光固化方法对得到的陶瓷浆料进行成形得到一种带内流道的陶瓷基板素坯，对陶瓷基板素坯采用工装及埋粉烧结方法在气压炉下烧结即可得到一种带内流道的高导热率氮化铝基陶瓷基板，本发明方法简单，提高了氮化铝基陶瓷基板的抗热震性及导热性能，加速了陶瓷基板的生产流程，降低了结构复杂的氮化铝基陶瓷基板成型难度。
Ceramic slurry for additive manufacturing of aluminum nitride ceramic substrate as well as preparation method and application of ceramic slurry
氮化铝陶瓷基板增材制造陶瓷浆料及其制备方法和应用
SHI JIAN (Autor:in) / LUO MINGYU (Autor:in) / HUI ZHUZHU (Autor:in) / MENG ZHUO (Autor:in)
31.03.2023
Patent
Elektronische Ressource
Chinesisch
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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