Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing C/C composite material through low-temperature hot-pressing high-temperature pressureless two-step sintering
The invention discloses a method for preparing a C/C composite material through low-temperature mold pressing and high-temperature constraint cracking sintering. The preparation method is characterized in that carbon fiber is used as a reinforcing phase, asphalt is used as a binder, graphite is used as a matrix, and the C/C composite material is prepared through pulping, dipping, low-temperature hot-pressing and high-temperature constraint cracking processes. According to the invention, the method has the characteristics of simplicity, quickness, low cost and high mechanical property; the density of the composite material prepared according to the method reaches 1.80 g/cm<3>, the maximum value of bending strength reaches 388+/-16 MPa, and the maximum value of fracture toughness reaches 6.10+/-0.83 MPa.m<1/2>; and the C/C composite material can be widely applied to the fields of aerospace impact-resistant parts, high-speed rail brake discs, pantograph slide plates and the like due to good mechanical properties and excellent electrical conductivity, thermal conductivity and high temperature resistance of the C/C composite material.
本发明公开了一种低温模压高温约束裂解烧结制备C/C复合材料的方法。其特征是：以碳纤维为增强相，沥青为粘结剂，石墨为基体，通过制浆、浸渍、低温热压高温约束裂解工艺制得。本发明的特点：简单快速、成本低、力学性能高。根据本发明方法制得到的复合材料密度达到1.80 g/cm3，弯曲强度最大值达到388±16 MPa，断裂韧性最大值达到6.10±0.83 MPa·m1/2。鉴于良好的力学性能及C/C复合材料自身优良的导电、导热及耐高温的特性，可广泛用于航空航天耐冲击零部件及高铁刹车盘和受电弓滑板等领域。
Method for preparing C/C composite material through low-temperature hot-pressing high-temperature pressureless two-step sintering
The invention discloses a method for preparing a C/C composite material through low-temperature mold pressing and high-temperature constraint cracking sintering. The preparation method is characterized in that carbon fiber is used as a reinforcing phase, asphalt is used as a binder, graphite is used as a matrix, and the C/C composite material is prepared through pulping, dipping, low-temperature hot-pressing and high-temperature constraint cracking processes. According to the invention, the method has the characteristics of simplicity, quickness, low cost and high mechanical property; the density of the composite material prepared according to the method reaches 1.80 g/cm<3>, the maximum value of bending strength reaches 388+/-16 MPa, and the maximum value of fracture toughness reaches 6.10+/-0.83 MPa.m<1/2>; and the C/C composite material can be widely applied to the fields of aerospace impact-resistant parts, high-speed rail brake discs, pantograph slide plates and the like due to good mechanical properties and excellent electrical conductivity, thermal conductivity and high temperature resistance of the C/C composite material.
本发明公开了一种低温模压高温约束裂解烧结制备C/C复合材料的方法。其特征是：以碳纤维为增强相，沥青为粘结剂，石墨为基体，通过制浆、浸渍、低温热压高温约束裂解工艺制得。本发明的特点：简单快速、成本低、力学性能高。根据本发明方法制得到的复合材料密度达到1.80 g/cm3，弯曲强度最大值达到388±16 MPa，断裂韧性最大值达到6.10±0.83 MPa·m1/2。鉴于良好的力学性能及C/C复合材料自身优良的导电、导热及耐高温的特性，可广泛用于航空航天耐冲击零部件及高铁刹车盘和受电弓滑板等领域。
Method for preparing C/C composite material through low-temperature hot-pressing high-temperature pressureless two-step sintering
一种低温热压高温无压两步法烧结制备C/C复合材料的方法
WU SONGSONG (Autor:in) / WEN GUANGWU (Autor:in) / LIU YEQING (Autor:in)
08.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2023
Method for preparing infrared transparent ceramic through pressureless rapid sintering
| Europäisches Patentamt | 2021