欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用化学气相渗透法在三维细编穿刺炭毡中的炭纤维表面沉积TaC陶瓷界面，通过控制气体在预制体中的流动方向，获得梯度分布TaC界面改性C／C复合材料。研究了材料的微观结构、弯曲性能以及断裂韧性，结果表明：TaC呈层状分布在炭纤维表面，从c／c复合材料表层到内部，TaC陶瓷相的含量呈梯度分布；梯度分布TaC界面改性C／C复合材料的平均弯曲强度为272．6MPa，平均断裂韧性为5．0MPa·m^1/2；整体上，沿材料厚度（Z轴）方向，随TaC含量的降低，纤维的拔出长度明显变短；在表层富TaC区，TaC含量对材料断裂行为有较大影响，其表现为：在TaC含量较多的外层，材料断裂为脆性断裂，而在TaC含量较少的内层，材料断裂为假塑性断裂。
英文摘要：
TaC ceramic interlayer was deposited on carbon fiber in three-dimensional fine-woven punc- tured felt by using chemical vapor infiltration method. By controlling the flow direction of the reaction gases in the preform, C/C composites with gradient distributed TaC interlayer were obtained. Micro- structure, flexural property and fracture toughness of the as-prepared composites were studied. The results show that TaC interlayer is deposited on the surface of carbon fiber and presents a gradient dis- trihution in C/C composites. The average flexural strength and fracture toughness of the as-prepared composites are 272.6MPa and 5.0MPa· m1/2 , respectively. In general, with the decreasing of the TaC content along the thickness direction （Z-axis） of the composites, the length of carbon fiber pulled out from the carbon matrix becomes shorter. In TaC-rich area, TaC content has significant influence on fracture behavior of the composites. The fracture behavior of the TaC-rich area is brittle in outer layer which has more TaC, while change to pseudo-ductile in inner layer which has less TaC.
同期刊论文项目
同项目期刊论文
Osteoblastic cell response on biphasic fluorhydroxyapatite/strontium-substituted hydroxyapatite coat
Synthesis and optical property of ultra-long alpha-Si3N4 nanowires under superatmospheric pressure c
A thermodynamic description of the Co-Cr-Ti ternary system over the entire composition and temperatu
Development of an atomic mobility database for disordered and ordered fcc phases in multicomponent A
Thermodynamic description of the Al-Mg-Si system using a new formulation for the temperature depende
Experimental Investigation and Computer Simulation of Gradient Zone Formation in WC-Ti(C,N)-TaC-NbC-
Photosan-II loaded hollow silica nanoparticles: Preparation and its effect in killing for QBC939 cel
Effect of calcium on the electrochemical behavior of lithium anode in LiOH aqueous solution used for
Facile synthesis of Ag/AgVO3 hybrid nanorods with enhanced electrochemical performance as cathode ma
Thermodynamic description of the Ge-Na and Ge-K systems using the CALPHAD approach supported by firs
Investigation to impurity content and micromorphology of high purity titanium powder prepared by mol
Microstructures and mechanical properties of Fe-14Cr-3W-Ti-Y2O3 steel with 1 wt.% Cu addition fabric
Ideal mechanical strength and interface cohesion property of Ir-base superalloys from first principl
Effect of MWCNTs Additive on Desorption Properties of Zn(BH4)(2) Composite Prepared by Mechanical Al
Effects of Ca on microstructure, mechanical and corrosion properties and biocompatibility of Mg-Zn-C
Microstructural Evolution of a Nickel Ferrite-Copper Alloy Cermet During Sintering and High-Temperat
Innovative processing of high-strength and low-cost ferritic steels strengthened by Y-Ti-O nanoclust
Effect of tungsten content on microstructure and quasi-static tensile fracture characteristics of ra
Synthesis and characterization of superhydrophobic functionalized nanoparticle arrays on aluminum su
Preparation of Super-Hydrophobic Aluminum by a Novel Immersion Method using Potassium Permanganate S
Structural evolution and ablation mechanism of a hafnium carbide coating on a C/C composite in an ox
Experimental investigation and thermodynamic modeling of the Cu-Si-Zn system with the refined descri
THERMODYNAMIC MODELING OF THE Fe-Zn SYSTEM USING EXPONENTIAL TEMPERATURE DEPENDENCE FOR THE EXCESS G
Relationship between lamellar alpha evolution and flow behavior during isothermal deformation of Ti-
Effect of heat treatment on strength, exfoliation corrosion and electrochemical behavior of 7085 alu
First-principles calculations of binary Al compounds: Enthalpies of formation and elastic properties
Structure and thermodynamics of the key precipitated phases in the Al-Mg-Si alloys from first-princi
Development of an atomic mobility database for liquid phase in multicomponent Al alloys: focusing on
Fiber/matrix interfacial shear strength of C/C composites with PyC-TaC-PyC and PyC-SiC-TaC-PyC multi
Sol-hydrothermal synthesis and optical properties of Eu3+, Tb3+-codoped one-dimensional strontium ge
Flower-like hydroxyapatite modified carbon paste electrodes applicable for highly sensitive detectio
Comparison of microstructure and mechanical properties of Co-based and Fe-based alloy coatings depos
Thermodynamic assessment of the Ga-X (X=B, Ca, Sr, Ba) systems supported by first-principles calcula
Effect of heat treatment on hot deformation behavior and microstructure evolution of 7085 aluminum a
Ablation behavior of HfC protective coatings for carbon/carbon composites in an oxyacetylene combust
Effects of partial hydrogenation and vacancy defects on the electronic properties of metallic carbon
Effects of Cu and Al on the crystal structure and composition of eta (MgZn2) phase in over-aged Al-Z
Conversion of egg-shell to hydroxyapatite for highly sensitive detection of endocrine disruptor bisp
期刊信息
位置：