Physical and Mechanical Properties of Bulk Ta4AlC3Ceramic Prepared by an In Situ Reaction Synthesis/Hot-Pressing Method

2007 ◽  
Vol 90 (8) ◽  
pp. 2542-2548 ◽  
Author(s):  
Chunfeng Hu ◽  
Zhijun Lin ◽  
Lingfeng He ◽  
Yiwang Bao ◽  
Jingyang Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Hot Pressing ◽  
Physical And Mechanical Properties ◽  
Reaction Synthesis ◽  
Pressing Method ◽  
In Situ Reaction

In-situ reaction synthesis and mechanical properties of quaternary MAX phase (Cr2/3Ti1/3)3AlC2

2020 ◽  
Vol 46 (14) ◽  
pp. 22854-22860
Author(s):  
Zhimou Liu ◽  
Jia Yang ◽  
Yuhai Qian ◽  
Jingjun Xu ◽  
Jun Zuo ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Max Phase ◽  
Reaction Synthesis ◽  
In Situ Reaction

Microstructure and Mechanical Properties of Al2O3/TiAl In Situ Composites Doped with Fe2O3

2011 ◽  
Vol 675-677 ◽  
pp. 597-600
Author(s):  
Liu Yi Xiang ◽  
Fen Wang ◽  
Jian Feng Zhu ◽  
Xiao Feng Wang
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Flexural Strength ◽  
Hot Pressing ◽  
Rockwell Hardness ◽  
Powder Mixtures ◽  
Pressing Method ◽  
Fe2o3 Content ◽  
Maximum Value

Al2O3/TiAl in situ composites were successfully prepared by vacuum hot-pressing method with elemental powder mixtures of Ti, Al, TiO2 and Fe2O3. The effect of Fe2O3 addition on the microstructures and mechanical properties of Al2O3/TiAl composites has been investigated. The results show that the Rockwell hardness, flexural strength and fracture toughness of the composites increase with increasing Fe2O3 content. When the Fe2O3 content is 0.84 wt %, the flexural strength and the fracture toughness reach the maximum value of 624 MPa and 6.63 MPa·m1/2, respectively. The improvement of mechanical properties is firstly associated with a more homogeneous and finer microstructure developed by addition of Fe2O3; secondly, it is related to the increase of the ratio of α2-Ti3Al/γ- TiAl matrix phases.

Microstructure and properties of bulk Ta2AlC ceramic synthesized by an in situ reaction/hot pressing method

2008 ◽  
Vol 28 (8) ◽  
pp. 1679-1685 ◽  
Author(s):  
Chunfeng Hu ◽  
Lingfeng He ◽  
Jie Zhang ◽  
Yiwang Bao ◽  
Jingyang Wang ◽  
...  
Keyword(s):  
Hot Pressing ◽  
Pressing Method ◽  
Microstructure And Properties ◽  
In Situ Reaction

scholarly journals Fabrication, Microstructure, and Properties of In Situ V2C-Reinforced Copper Composites

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1829
Author(s):  
Yu Quan ◽  
Baotong Hu ◽  
Shuai Fu ◽  
Detian Wan ◽  
Yiwang Bao ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Tensile Strength ◽  
Vickers Hardness ◽  
Hot Pressing ◽  
Physical And Mechanical Properties ◽  
Microstructure And Properties

In this paper, in situ V2C-reinforced Cu composites were successfully fabricated by hot pressing at 750 °C under 25 MPa using Cu and V2SnC powders. Due to decomposition of V2SnC to V2C and Sn during sintering, Sn atoms entered the crystal structure of Cu. Therefore, final compositions of composites consisted of Cu(Sn) and V2C phases. Here, copper composites with 0, 5, 10, 20, and 30 vol.% V2C were designed. Their microstructures and physical and mechanical properties were systematically investigated. It was observed that with increasing V2C content, electrical conductivity decreased from 0.589 × 108 S·m−1 to 0.034 × 108 S·m−1 and thermal conductivity decreased from 384.36 W⋅m−1⋅K−1 to 24.65 W·m−1·K−1, while Vickers hardness increased from 52.6 HV to 334 HV. Furthermore, it was found that composites with 20 vol.% V2C had the highest tensile strength (440 MPa).

scholarly journals Microstructure and Mechanical Properties of Multiphase Strengthened Al/Si/Al2O3/SiO2/MWCNTs Nanocomposites Sintered byIn SituVacuum Hot Pressing

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Jingrui Li ◽  
Xiaosong Jiang ◽  
Zhenyi Shao ◽  
Degui Zhu ◽  
Shardai S. Johnson ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Hot Pressing ◽  
Fracture Mechanisms ◽  
Multiwalled Carbon ◽  
Pressing Method ◽  
Casting Alloys ◽  
Microstructure And Mechanical Properties ◽  
Low Thermal Expansion ◽  
Matrix Nanocomposites

Eutectic Al–Si binary alloy is technically one of the most important Al casting alloys due to its high corrosion resistance, evident shrinkage reduction, low thermal expansion coefficient, high fluidity, and good weldability. In this work, multiphased Al–Si matrix nanocomposites reinforced with Al2O3and multiwalled carbon nanotubes (MWCNTs) have been sintered by anin situvacuum hot-pressing method. The alumina Al2O3nanoparticles were introduced by anin situreaction of Al with SiO2. Microstructure and mechanical properties of the sintered Al/Si/Al2O3/SiO2/MWCNTs nanocomposites with different alumina contents were investigated. The mechanical properties were determined by micro-Vickers hardness and compressive and shear strength tests. The results demonstrated thatin situalumina and MWCNTs had impacts on microstructure and mechanical properties of the nanocomposites. Based on the mechanical properties and microstructure of the nanocomposites, strengthening and fracture mechanisms by multiple reinforcements were analyzed.

Study on in-situ reaction synthesis and mechanical properties of Si2N2O ceramic

2013 ◽  
Vol 39 (3) ◽  
pp. 3035-3041 ◽  
Author(s):  
Xiangming Li ◽  
Litong Zhang ◽  
Xiaowei Yin
Keyword(s):  
Mechanical Properties ◽  
Reaction Synthesis ◽  
In Situ Reaction

In-situ reaction synthesis Al2O3 overlay modified 7YSZ TBC for NaCl hot corrosion

2021 ◽  
Author(s):  
Jia-Feng Fan ◽  
Guo Liu ◽  
Xue-Shi Zhuo ◽  
Xiao-Feng Zhang ◽  
Jun-Li Feng ◽  
...  
Keyword(s):  
Hot Corrosion ◽  
Reaction Synthesis ◽  
In Situ Reaction
Sign in / Sign up

Export Citation Format

Share Document