Preparation method of SiC nanowire modified C/C composite material
A composite material and nanowire technology, which is applied in the field of preparation of SiC nanowire modified C/C composite materials, can solve problems such as adding SiC nanowires, and achieve the effects of improving mechanical properties and three-point bending strength.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0021] This embodiment is a preparation method of a SiC nanowire modified C / C composite material.
[0022] Step 1: Clean the carbon fiber preform ultrasonically with absolute ethanol for 30 minutes, then put it into an oven and dry it at 80°C for later use. Step 2, introducing SiC nanowires into the carbon fiber preform; the specific process is:
[0023] 1) Prepare SiC nanowire precursor impregnation solution. Weigh 10g of ferrocene, 55g of polycarbosilane and 35g of xylene respectively. After mixing, place in an ultrasonic pool and ultrasonically vibrate for 8 hours, so as to prepare the required precursor impregnation solution for preparing SiC nanowires;
[0024] 2) Vacuum impregnation of porous carbon fiber preforms. Put the porous carbon fiber preform into the impregnation tank, vacuumize to -0.10MPa, and vacuum for 10 minutes. After 10 minutes, add the impregnation solution into the impregnation tank until the porous carbon fiber preform is completely submerged for va...
Embodiment 2
[0030] Step 1: Clean the carbon fiber preform ultrasonically with absolute ethanol for 20 minutes, then put it into an oven and dry it at 70°C for later use. Step 2, introducing SiC nanowires into the carbon fiber preform; the specific process is:
[0031] 1) Prepare SiC nanowire precursor impregnation solution. Weigh 5g of ferrocene, 50g of polycarbosilane and 45g of xylene respectively. After mixing, put it in an ultrasonic pool and ultrasonically vibrate for 6 hours, so as to prepare the required precursor impregnation solution for preparing SiC nanowires;
[0032]2) Vacuum impregnation of porous carbon fiber preforms. Put the porous carbon fiber preform into the impregnation tank, vacuumize -0.09MPa, and vacuum for 8 minutes. After 8 minutes, add the impregnation solution into the impregnation tank until the porous carbon fiber preform is completely submerged for vacuum impregnation. After vacuum impregnation for 60 min, the impregnated porous carbon fiber preform was t...
Embodiment 3
[0038] Step 1: Clean the carbon fiber preform ultrasonically with absolute ethanol for 10 minutes, then put it into an oven and dry it at 60°C for later use. Step 2, introducing SiC nanowires into the carbon fiber preform; the specific process is:
[0039] 1) Prepare SiC nanowire precursor impregnation solution. Weigh 2g of ferrocene, 50g of polycarbosilane and 48g of xylene respectively. After mixing, place in an ultrasonic pool and ultrasonically vibrate for 5 hours, so as to prepare the required precursor impregnation solution for preparing SiC nanowires;
[0040] 2) Vacuum impregnation of porous carbon fiber preforms. Put the porous carbon fiber preform into the impregnation tank, vacuumize to -0.08MPa, and vacuum for 5 minutes. After 5 minutes, add the impregnation solution into the impregnation tank until the porous carbon fiber preform is completely submerged for vacuum impregnation. After vacuum impregnation for 30 min, the impregnated porous carbon fiber preform wa...
PUM
| Property | Measurement | Unit |
|---|---|---|
| density | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More