The Experts below are selected from a list of 15 Experts worldwide ranked by ideXlab platform

Liu Junpeng - One of the best experts on this subject based on the ideXlab platform.

  • Fabrication and ablation resistance research of C/ZrC-SiC composites
    IOP Conference Series: Materials Science and Engineering, 2020
    Co-Authors: Bai-hong Jiang, Liu Wei, Jin Xin, Zhang Baopeng, Liu Junpeng
    Abstract:

    C/ZrC-SiC composites were prepared by precursor impregnation pyrolysis (PIP) process. The ablation resistance of the composites was studied. The Residual Mechanical Property of the composites after ablation was compared and analyzed. The results show that the prepared C/ZrC-SiC composites have good ablation resistance under high temperature oxidation environment. The ablation amount in large area is less than 0.1 mm. The ablation products on the surface of the composites are mainly composed of SiO2 and ZrO2, forming a denser oxide film, which has a good protective effect on the structure of the composites. The data of Residual Mechanical properties indicate that the synergistic effect of high temperature and thermal stress under ablation environment may lead to the decrease of Mechanical strength of composites.

Shang Xing-ya - One of the best experts on this subject based on the ideXlab platform.

  • Mechanical properties of engineered cementitious composites exposed to elevated temperatures
    Transactions of Materials and Heat Treatment, 2015
    Co-Authors: Shang Xing-ya
    Abstract:

    Residual Mechanical properties of engineered cementitious composites( ECC) exposed to elevated temperatures were studied.The ECC specimens were heated to different temperatures( 200,400,600 and 800 ℃) for different time( 0. 5,1 and 2 h) and then compression tests were conducted on the specimens after cooling in air. The results show that the Residual strength and stiffness of the ECC generally decrease with the increasing temperature and heating duration except for the case of 200 ℃ temperature exposure. The MIP test was used to measure pore structures of the ECC specimens. It is found that the total intruded porosity and average pore size increase with the increasing temperature and heating duration except for the case of 200 ℃ temperature exposure,which well explains the Residual Mechanical Property changes of the ECC specimens after exposure to elevated temperatures.

Bai-hong Jiang - One of the best experts on this subject based on the ideXlab platform.

  • Fabrication and ablation resistance research of C/ZrC-SiC composites
    IOP Conference Series: Materials Science and Engineering, 2020
    Co-Authors: Bai-hong Jiang, Liu Wei, Jin Xin, Zhang Baopeng, Liu Junpeng
    Abstract:

    C/ZrC-SiC composites were prepared by precursor impregnation pyrolysis (PIP) process. The ablation resistance of the composites was studied. The Residual Mechanical Property of the composites after ablation was compared and analyzed. The results show that the prepared C/ZrC-SiC composites have good ablation resistance under high temperature oxidation environment. The ablation amount in large area is less than 0.1 mm. The ablation products on the surface of the composites are mainly composed of SiO2 and ZrO2, forming a denser oxide film, which has a good protective effect on the structure of the composites. The data of Residual Mechanical properties indicate that the synergistic effect of high temperature and thermal stress under ablation environment may lead to the decrease of Mechanical strength of composites.

Peng Gai - One of the best experts on this subject based on the ideXlab platform.

  • Explosive Spalling Thermally Induced and Fire Property of High Performance Silica Fume Concrete
    Journal of Building Materials, 1999
    Co-Authors: Peng Gai
    Abstract:

    In the present experimental research, concretes of five strength grades were used to investigate the behavior of high performance silica fume concrete with different moisture contents subjected to the ISO standard fire. The spalling test results obtained from the 100 mm cube specimens revealed that moisture content and strength grade are the two main factors governing the explosive thermal spalling behavior of concrete. Moisture content has a dominant influence on the occurrence of spalling. The dependence of spalling on moisture content and strength grade confirmed the vapor pressure build up mechanism of spalling. The rebound hammer tests carried out on the post fire concrete slabs showed that the spatial distribution of Residual Mechanical Property inside the slabs correlated with the temperature field. Conventional methods generally adopted are too simple for describing the Residual Mechanical properties of concrete subjected to fire. A new method is needed which should take into consideration both chemical and physical changes inside concrete caused by the temperature field.

Liu Wei - One of the best experts on this subject based on the ideXlab platform.

  • Fabrication and ablation resistance research of C/ZrC-SiC composites
    IOP Conference Series: Materials Science and Engineering, 2020
    Co-Authors: Bai-hong Jiang, Liu Wei, Jin Xin, Zhang Baopeng, Liu Junpeng
    Abstract:

    C/ZrC-SiC composites were prepared by precursor impregnation pyrolysis (PIP) process. The ablation resistance of the composites was studied. The Residual Mechanical Property of the composites after ablation was compared and analyzed. The results show that the prepared C/ZrC-SiC composites have good ablation resistance under high temperature oxidation environment. The ablation amount in large area is less than 0.1 mm. The ablation products on the surface of the composites are mainly composed of SiO2 and ZrO2, forming a denser oxide film, which has a good protective effect on the structure of the composites. The data of Residual Mechanical properties indicate that the synergistic effect of high temperature and thermal stress under ablation environment may lead to the decrease of Mechanical strength of composites.