A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Complex-structure carbon fiber-SiC whisker reinforced SiSiC composite material and preparation method thereof
The invention belongs to the field of reactive sintering silicon carbide preparation, and more specifically relates to a complex-structure carbon fiber-SiC whisker reinforced SiSiC composite material and a preparation method thereof, the preparation method comprises the following steps: (a) fully mixing silicon carbide, short carbon fiber and thermoplastic phenolic resin to obtain SiC-Cf mixed powder; (b) subjecting the SiC-Cf mixed powder to 3D printing forming, and obtaining a SiC-Cf green body; (c) subjecting the SiC-Cf green body to infiltration with SiO2-C slurry, and then obtaining a SiCw-SiC-Cf green body containing SiC whiskers i through first heat treatment; (d) infiltrating the SiCw-SiC-Cf green body into a polycarbosilane organic solution, and then performing heat treatment for the second time to obtain a second green body; and (e) densifying the second green body by adopting a siliconizing process. The carbon fiber-SiC whisker reinforced SiSiC composite material prepared by the invention has excellent mechanical properties, is suitable for the field of high-end equipment such as a thermal protection system of a hypersonic aircraft, a hot end part of an aero-engine and a high-performance brake pad, and has a wide application prospect.
本发明属于反应烧结碳化硅制备领域，更具体地，涉及一种复杂结构碳纤维‑SiC晶须增强的SiSiC复合材料及制备方法，制备方法包括：包括如下步骤：(a)将碳化硅、短切碳纤维、热塑性酚醛树脂充分混合后得到SiC‑Cf混合粉体；(b)将SiC‑Cf混合粉体进行3D打印成形，得到SiC‑Cf生坯；(c)对SiC‑Cf生坯浸渗SiO2‑C料浆，而后第一次热处理得到含SiC晶须的SiCw‑SiC‑Cf坯体；(d)对SiCw‑SiC‑Cf坯体浸渗聚碳硅烷有机溶液，然后第二次热处理得到第二坯体；(e)采用渗硅工艺对第二坯体进行致密化。本发明制备得到的碳纤维‑SiC晶须增强的SiSiC复合材料具有优异的力学性能，适用于高超声速飞行器热防护系统、航空发动机热端部件、高性能刹车片等高端装备领域，具有广阔的应用前景。
Complex-structure carbon fiber-SiC whisker reinforced SiSiC composite material and preparation method thereof
The invention belongs to the field of reactive sintering silicon carbide preparation, and more specifically relates to a complex-structure carbon fiber-SiC whisker reinforced SiSiC composite material and a preparation method thereof, the preparation method comprises the following steps: (a) fully mixing silicon carbide, short carbon fiber and thermoplastic phenolic resin to obtain SiC-Cf mixed powder; (b) subjecting the SiC-Cf mixed powder to 3D printing forming, and obtaining a SiC-Cf green body; (c) subjecting the SiC-Cf green body to infiltration with SiO2-C slurry, and then obtaining a SiCw-SiC-Cf green body containing SiC whiskers i through first heat treatment; (d) infiltrating the SiCw-SiC-Cf green body into a polycarbosilane organic solution, and then performing heat treatment for the second time to obtain a second green body; and (e) densifying the second green body by adopting a siliconizing process. The carbon fiber-SiC whisker reinforced SiSiC composite material prepared by the invention has excellent mechanical properties, is suitable for the field of high-end equipment such as a thermal protection system of a hypersonic aircraft, a hot end part of an aero-engine and a high-performance brake pad, and has a wide application prospect.
本发明属于反应烧结碳化硅制备领域，更具体地，涉及一种复杂结构碳纤维‑SiC晶须增强的SiSiC复合材料及制备方法，制备方法包括：包括如下步骤：(a)将碳化硅、短切碳纤维、热塑性酚醛树脂充分混合后得到SiC‑Cf混合粉体；(b)将SiC‑Cf混合粉体进行3D打印成形，得到SiC‑Cf生坯；(c)对SiC‑Cf生坯浸渗SiO2‑C料浆，而后第一次热处理得到含SiC晶须的SiCw‑SiC‑Cf坯体；(d)对SiCw‑SiC‑Cf坯体浸渗聚碳硅烷有机溶液，然后第二次热处理得到第二坯体；(e)采用渗硅工艺对第二坯体进行致密化。本发明制备得到的碳纤维‑SiC晶须增强的SiSiC复合材料具有优异的力学性能，适用于高超声速飞行器热防护系统、航空发动机热端部件、高性能刹车片等高端装备领域，具有广阔的应用前景。
Complex-structure carbon fiber-SiC whisker reinforced SiSiC composite material and preparation method thereof
一种复杂结构碳纤维-SiC晶须增强的SiSiC复合材料及制备方法
LI CHENHUI (author) / ZOU YANG (author) / HU LIANG (author) / WU WEIJIAN (author) / LIU JIANG'AN (author) / WU JIAMIN (author) / SHI YUSHENG (author)
2021-07-02
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
| European Patent Office | 2022
Mullite whisker reinforced mullite composite material and preparation method thereof
| European Patent Office | 2023
Carbon whisker reinforced porous glass carbon material and preparation method thereof
| European Patent Office | 2024
Whisker reinforced piezoceramic material and preparation method thereof
| European Patent Office | 2016
Whisker-reinforced lightweight alumina-carbon refractory material and preparation method thereof
| European Patent Office | 2021