Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to in-phase toughened aluminum nitride ceramic and a preparation method thereof. The method comprises the following steps: adding 1-50 parts by weight of a toughening agent into 100 parts by weight of raw materials for preparing an aluminum nitride ceramic matrix to form green body slurry; carrying out a dry molding process or a wet molding process on the green body slurry to obtain a green body; carrying out glue removal on the green body at 300-700 DEG C to obtain a biscuit; and sintering the green body for 1-9 hours in a protective atmosphere in a temperature range of 1600-1900 DEG C, so as to obtain the in-phase toughened aluminum nitride ceramic. The raw materials comprise 92-97 parts by weight of aluminum nitride powder and 3-8 parts by weight of a sintering agent; the toughening agent is selected from one or more of aluminum nitride whiskers, aluminum nitride nanowires and aluminum nitride particles. According to the method, the toughness, the strength and the heat conductivity of the aluminum nitride ceramic are remarkably improved.
本申请涉及一种同相增韧型氮化铝陶瓷及其制备方法。该方法包括向100重量份的用于制备氮化铝陶瓷基体的原料中添加1‑50重量份的增韧剂形成坯体浆料；对坯体浆料进行干法成型工艺或湿法成型工艺得到生坯；生坯经300‑700℃排胶得到素坯；在1600℃‑1900℃的温度范围内，在保护性气氛中烧结素坯持续1h‑9h，即得到同相增韧型氮化铝陶瓷；原料包括92‑97重量份的氮化铝粉末和3‑8重量份的烧结剂；增韧剂选自氮化铝晶须、氮化铝纳米线以及氮化铝颗粒中的一种或多种。本申请的方法显著提高了氮化铝陶瓷的韧性、强度和热导率。
The invention relates to in-phase toughened aluminum nitride ceramic and a preparation method thereof. The method comprises the following steps: adding 1-50 parts by weight of a toughening agent into 100 parts by weight of raw materials for preparing an aluminum nitride ceramic matrix to form green body slurry; carrying out a dry molding process or a wet molding process on the green body slurry to obtain a green body; carrying out glue removal on the green body at 300-700 DEG C to obtain a biscuit; and sintering the green body for 1-9 hours in a protective atmosphere in a temperature range of 1600-1900 DEG C, so as to obtain the in-phase toughened aluminum nitride ceramic. The raw materials comprise 92-97 parts by weight of aluminum nitride powder and 3-8 parts by weight of a sintering agent; the toughening agent is selected from one or more of aluminum nitride whiskers, aluminum nitride nanowires and aluminum nitride particles. According to the method, the toughness, the strength and the heat conductivity of the aluminum nitride ceramic are remarkably improved.
本申请涉及一种同相增韧型氮化铝陶瓷及其制备方法。该方法包括向100重量份的用于制备氮化铝陶瓷基体的原料中添加1‑50重量份的增韧剂形成坯体浆料；对坯体浆料进行干法成型工艺或湿法成型工艺得到生坯；生坯经300‑700℃排胶得到素坯；在1600℃‑1900℃的温度范围内，在保护性气氛中烧结素坯持续1h‑9h，即得到同相增韧型氮化铝陶瓷；原料包括92‑97重量份的氮化铝粉末和3‑8重量份的烧结剂；增韧剂选自氮化铝晶须、氮化铝纳米线以及氮化铝颗粒中的一种或多种。本申请的方法显著提高了氮化铝陶瓷的韧性、强度和热导率。
| Europäisches Patentamt | 2022
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