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Binder jet printing silicon carbide-aluminum composite material and preparation method thereof
The invention discloses a binder jet printing silicon carbide-aluminum composite material and a preparation method thereof, and relates to the field of composite materials. Preparing silicon carbide spherical granulation powder; carrying out binder jet printing on the basis of the silicon carbide spherical granulation powder to obtain a first green body; performing residual powder removal, curing treatment and degreasing treatment on the first green body to obtain a second green body; the second green body is infiltrated in an infiltration solution for infiltration treatment, a third green body is obtained after drying, and the infiltration solution is a nano SiC ceramic suspension or a mixed solution of polycarbosilane and nano SiC powder; the nano SiC ceramic suspension is a mixed solution of nano SiC, a solvent and a dispersing agent, and the concentration of the nano SiC is 10-40 vol%; the mass of the nano SiC powder is 5-15% of the mass of the polycarbosilane; sintering the third green body to obtain a silicon carbide ceramic sintered body; and infiltrating aluminum in the silicon carbide sintered body to obtain the silicon carbide-aluminum composite material. The density and thermal-mechanical properties of the silicon carbide ceramic jet-printed by the binder can be improved.
本发明公开了一种粘结剂喷射打印碳化硅‑铝复合材料及其制备方法，涉及复合材料领域。制备碳化硅球形造粒粉体；基于碳化硅球形造粒粉体进行粘结剂喷射打印，得到第一坯体；对第一坯体进行清除残粉、固化处理及脱脂处理，得到第二胚体；将第二胚体浸渗在浸渗液中进行浸渗处理，烘干后得到第三坯体，浸渗液为纳米SiC陶瓷悬浮液或聚碳硅烷与纳米SiC粉体混合液；纳米SiC陶瓷悬浮液为纳米SiC与溶剂和分散剂的混合液，纳米SiC的浓度为10～40vol％；纳米SiC粉体的质量为聚碳硅烷的质量的5～15％；对第三坯体进行烧结处理，得到碳化硅陶瓷烧结体；在碳化硅烧结体内熔渗铝，得到碳化硅‑铝复合材料。本发明能够提高粘结剂喷射打印碳化硅陶瓷的致密度及其热‑力学性能。
Binder jet printing silicon carbide-aluminum composite material and preparation method thereof
The invention discloses a binder jet printing silicon carbide-aluminum composite material and a preparation method thereof, and relates to the field of composite materials. Preparing silicon carbide spherical granulation powder; carrying out binder jet printing on the basis of the silicon carbide spherical granulation powder to obtain a first green body; performing residual powder removal, curing treatment and degreasing treatment on the first green body to obtain a second green body; the second green body is infiltrated in an infiltration solution for infiltration treatment, a third green body is obtained after drying, and the infiltration solution is a nano SiC ceramic suspension or a mixed solution of polycarbosilane and nano SiC powder; the nano SiC ceramic suspension is a mixed solution of nano SiC, a solvent and a dispersing agent, and the concentration of the nano SiC is 10-40 vol%; the mass of the nano SiC powder is 5-15% of the mass of the polycarbosilane; sintering the third green body to obtain a silicon carbide ceramic sintered body; and infiltrating aluminum in the silicon carbide sintered body to obtain the silicon carbide-aluminum composite material. The density and thermal-mechanical properties of the silicon carbide ceramic jet-printed by the binder can be improved.
本发明公开了一种粘结剂喷射打印碳化硅‑铝复合材料及其制备方法，涉及复合材料领域。制备碳化硅球形造粒粉体；基于碳化硅球形造粒粉体进行粘结剂喷射打印，得到第一坯体；对第一坯体进行清除残粉、固化处理及脱脂处理，得到第二胚体；将第二胚体浸渗在浸渗液中进行浸渗处理，烘干后得到第三坯体，浸渗液为纳米SiC陶瓷悬浮液或聚碳硅烷与纳米SiC粉体混合液；纳米SiC陶瓷悬浮液为纳米SiC与溶剂和分散剂的混合液，纳米SiC的浓度为10～40vol％；纳米SiC粉体的质量为聚碳硅烷的质量的5～15％；对第三坯体进行烧结处理，得到碳化硅陶瓷烧结体；在碳化硅烧结体内熔渗铝，得到碳化硅‑铝复合材料。本发明能够提高粘结剂喷射打印碳化硅陶瓷的致密度及其热‑力学性能。
Binder jet printing silicon carbide-aluminum composite material and preparation method thereof
一种粘结剂喷射打印碳化硅-铝复合材料及其制备方法
LI YEHUA (author) / JIANG ZHISHUI (author) / WEN LI (author) / CHEN JIE (author) / OU MING (author) / DONG JINJIE (author)
2023-08-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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