The Experts below are selected from a list of 156 Experts worldwide ranked by ideXlab platform

Shun Dong - One of the best experts on this subject based on the ideXlab platform.

  • microstructure mechanical properties and thermal shock resistance of zrb2 sic Cf Composite with inhibited degradation of carbon fibers
    Journal of Alloys and Compounds, 2017
    Co-Authors: Kaixuan Gui, Wenhu Hong, Xinghong Zhang, Shun Dong
    Abstract:

    Abstract ZrB 2 -SiC-C f Composite with carbon coated carbon fibers was successfully prepared by low temperature hot pressing. This Composite showed an excellent thermal shock resistance compared with those Composites fabricated by hot pressing and spark plasma sintering using as-received carbon fibers. Toughening mechanisms such as crack deflection, crack branching, fibers pull-out and fibers bridging were obviously detected in ZrB 2 -SiC-C f owing to the inhibited degradation of carbon fibers and the relatively weak fiber/matrix interfacial bonding, leading to a non-brittle fracture mode of the Composite. Moreover, the Composite exhibited an excellent thermal shock resistance with a high critical thermal shock temperature difference of 773 °C which is about twice those of the reported ZrB 2 -based ultra-high temperature ceramics. This work provides valuable guidance in the preparation of ZrB 2 -based ultra-high temperature ceramics with a combination of excellent properties.

  • high performance zrb2 sic Cf Composite prepared by low temperature hot pressing using nanosized zrb2 powder
    Journal of The European Ceramic Society, 2017
    Co-Authors: Ping Hu, Wenhu Hong, Xinghong Zhang, Shun Dong
    Abstract:

    Abstract High-performance ZrB2-SiC-Cf Composite was successfully prepared by low temperature (1450 °C) hot pressing using nanosized ZrB2 powder. Such material exhibited a non-brittle fracture feature, high work of fracture (321 J/m2) and excellent thermal shock resistance as well as good oxidation resistance. Composite incorporating carbon fibers in which the degradation of the carbon fiber was effectively inhibited through low-temperature sintering displayed remarkably improved thermal shock resistance with a critical temperature difference of 754 °C, almost twice those of the reported ZrB2-based ultra-high temperature ceramics. The thermal and chemical stability of the carbon fiber and ceramic matrix were further analyzed by thermodynamic calculation and HR-TEM analysis.

Ping Hu - One of the best experts on this subject based on the ideXlab platform.

  • high performance zrb2 sic Cf Composite prepared by low temperature hot pressing using nanosized zrb2 powder
    Journal of The European Ceramic Society, 2017
    Co-Authors: Ping Hu, Wenhu Hong, Xinghong Zhang, Shun Dong
    Abstract:

    Abstract High-performance ZrB2-SiC-Cf Composite was successfully prepared by low temperature (1450 °C) hot pressing using nanosized ZrB2 powder. Such material exhibited a non-brittle fracture feature, high work of fracture (321 J/m2) and excellent thermal shock resistance as well as good oxidation resistance. Composite incorporating carbon fibers in which the degradation of the carbon fiber was effectively inhibited through low-temperature sintering displayed remarkably improved thermal shock resistance with a critical temperature difference of 754 °C, almost twice those of the reported ZrB2-based ultra-high temperature ceramics. The thermal and chemical stability of the carbon fiber and ceramic matrix were further analyzed by thermodynamic calculation and HR-TEM analysis.

Xinghong Zhang - One of the best experts on this subject based on the ideXlab platform.

  • microstructure mechanical properties and thermal shock resistance of zrb2 sic Cf Composite with inhibited degradation of carbon fibers
    Journal of Alloys and Compounds, 2017
    Co-Authors: Kaixuan Gui, Wenhu Hong, Xinghong Zhang, Shun Dong
    Abstract:

    Abstract ZrB 2 -SiC-C f Composite with carbon coated carbon fibers was successfully prepared by low temperature hot pressing. This Composite showed an excellent thermal shock resistance compared with those Composites fabricated by hot pressing and spark plasma sintering using as-received carbon fibers. Toughening mechanisms such as crack deflection, crack branching, fibers pull-out and fibers bridging were obviously detected in ZrB 2 -SiC-C f owing to the inhibited degradation of carbon fibers and the relatively weak fiber/matrix interfacial bonding, leading to a non-brittle fracture mode of the Composite. Moreover, the Composite exhibited an excellent thermal shock resistance with a high critical thermal shock temperature difference of 773 °C which is about twice those of the reported ZrB 2 -based ultra-high temperature ceramics. This work provides valuable guidance in the preparation of ZrB 2 -based ultra-high temperature ceramics with a combination of excellent properties.

  • high performance zrb2 sic Cf Composite prepared by low temperature hot pressing using nanosized zrb2 powder
    Journal of The European Ceramic Society, 2017
    Co-Authors: Ping Hu, Wenhu Hong, Xinghong Zhang, Shun Dong
    Abstract:

    Abstract High-performance ZrB2-SiC-Cf Composite was successfully prepared by low temperature (1450 °C) hot pressing using nanosized ZrB2 powder. Such material exhibited a non-brittle fracture feature, high work of fracture (321 J/m2) and excellent thermal shock resistance as well as good oxidation resistance. Composite incorporating carbon fibers in which the degradation of the carbon fiber was effectively inhibited through low-temperature sintering displayed remarkably improved thermal shock resistance with a critical temperature difference of 754 °C, almost twice those of the reported ZrB2-based ultra-high temperature ceramics. The thermal and chemical stability of the carbon fiber and ceramic matrix were further analyzed by thermodynamic calculation and HR-TEM analysis.

Wenhu Hong - One of the best experts on this subject based on the ideXlab platform.

  • microstructure mechanical properties and thermal shock resistance of zrb2 sic Cf Composite with inhibited degradation of carbon fibers
    Journal of Alloys and Compounds, 2017
    Co-Authors: Kaixuan Gui, Wenhu Hong, Xinghong Zhang, Shun Dong
    Abstract:

    Abstract ZrB 2 -SiC-C f Composite with carbon coated carbon fibers was successfully prepared by low temperature hot pressing. This Composite showed an excellent thermal shock resistance compared with those Composites fabricated by hot pressing and spark plasma sintering using as-received carbon fibers. Toughening mechanisms such as crack deflection, crack branching, fibers pull-out and fibers bridging were obviously detected in ZrB 2 -SiC-C f owing to the inhibited degradation of carbon fibers and the relatively weak fiber/matrix interfacial bonding, leading to a non-brittle fracture mode of the Composite. Moreover, the Composite exhibited an excellent thermal shock resistance with a high critical thermal shock temperature difference of 773 °C which is about twice those of the reported ZrB 2 -based ultra-high temperature ceramics. This work provides valuable guidance in the preparation of ZrB 2 -based ultra-high temperature ceramics with a combination of excellent properties.

  • high performance zrb2 sic Cf Composite prepared by low temperature hot pressing using nanosized zrb2 powder
    Journal of The European Ceramic Society, 2017
    Co-Authors: Ping Hu, Wenhu Hong, Xinghong Zhang, Shun Dong
    Abstract:

    Abstract High-performance ZrB2-SiC-Cf Composite was successfully prepared by low temperature (1450 °C) hot pressing using nanosized ZrB2 powder. Such material exhibited a non-brittle fracture feature, high work of fracture (321 J/m2) and excellent thermal shock resistance as well as good oxidation resistance. Composite incorporating carbon fibers in which the degradation of the carbon fiber was effectively inhibited through low-temperature sintering displayed remarkably improved thermal shock resistance with a critical temperature difference of 754 °C, almost twice those of the reported ZrB2-based ultra-high temperature ceramics. The thermal and chemical stability of the carbon fiber and ceramic matrix were further analyzed by thermodynamic calculation and HR-TEM analysis.

Shunxi Song - One of the best experts on this subject based on the ideXlab platform.

  • multifunctional cellulose based air filters with high loadings of metal organic frameworks prepared by in situ growth method for gas adsorption and antibacterial applications
    Cellulose, 2018
    Co-Authors: Meiyun Zhang, Jingyi Nie, Bin Yang, Shunxi Song
    Abstract:

    Environmental threats, especially particulate matter, toxic gases and microbial pollution, have done serious harm to human health. In this paper, biodegradable Composite filters were fabricated by an in situ deposition method to isolate pollutants and inactivate bacteria. The zeolitic imidazolate framework-8@cellulose fibers (ZIF-8@Cf) filters had filtration efficiency as high as 98.36% and 99.94% against 0.3 μm and 0.5 μm particles, respectively, under a pressure drop of 134 Pa. Moreover, the nitrogen adsorption capacities of the Composites were about 20 times higher than those of pure cellulose filters. In addition, the Ag-based metal–organic frameworks@cellulose fibers (Ag-MOFs@Cf) exhibited excellent antimicrobial activity against Escherichia coli (E. coli) with an inhibition zone diameter of 20.8 mm. Herein, these metal–organic frameworks@cellulose fibers (MOFs@Cf) Composite filters with high filtration efficiency, gas adsorption and antibacterial properties could be potentially applied in alleviating air pollution and in healthcare fields.