The Experts below are selected from a list of 285 Experts worldwide ranked by ideXlab platform

Z. Ying - One of the best experts on this subject based on the ideXlab platform.

  • Positive Temperature coefficient thermistors based on carbon nanotube polymer composites
    Scientific Reports, 2015
    Co-Authors: You Zeng, Guixia Lu, Han Wang, Jinhong Du, Z. Ying
    Abstract:

    In order to explore availability of carbon nanotube (CNT)-based Positive Temperature coefficient (PTC) thermistors in practical application, we prepared carbon nanotube (CNT) filled high density polyethylene (HDPE) composites by using conventional melt-mixing methods, and investigated their PTC effects in details. The CNT-based thermistors exhibit much larger hold current and higher hold voltage, increasing by 129% in comparison with the commercial carbon black (CB) filled HDPE thermistors. Such high current-bearing and voltage-bearing capacity for the CNT/HDPE thermistors is mainly attributed to high thermal conductivity and heat dissipation of entangled CNT networks. Moreover, the CNT/HDPE thermistors exhibit rapid electrical response to applied voltages, comparable to commercial CB-based thermistors. In light of their high current-bearing capacity and quick response, the CNT-based thermistors have great potential to be used as high-performance thermistors in practical application, especially in some critical circumstances of high Temperature, large applied currents, and high applied voltages.

  • Positive Temperature coefficient effect in multiwalled carbon nanotube high density polyethylene composites
    Applied Physics Letters, 2005
    Co-Authors: X. J. He, J. H. Du, Z. Ying, Huiming Cheng
    Abstract:

    Muldwalled carbon nanotube (MWNT)-filled high-density polyethylene (HDPE) composites were prepared by a solution-precipitation process, and the Temperature dependence of electrical conductivity of the MWNT/HDPE composites was studied. An obvious Positive Temperature coefficient (PTC) effect was found in the MWNT/HDPE composites with a relatively low MWNT concentration. Compared with that of carbon black (CB)/HDPE composite, the negative Temperature coefficient (NTC) effect of the MWNT/HDPE composite at Temperature above the melting Temperature of HDPE was much less obvious and could be further eliminated after 80 kGy gamma-ray irradiation. The mechanism of the PTC and NTC effects in MWNT/HDPE composites was discussed. (C) 2005 American Institute of Physics.

  • Positive Temperature coefficient effect in multiwalled carbon nanotube/high-density polyethylene composites
    Applied Physics Letters, 2005
    Co-Authors: X. J. He, J. H. Du, Z. Ying, Hui-ming Cheng
    Abstract:

    Multiwalled carbon nanotube (MWNT)-filled high-density polyethylene (HDPE) composites were prepared by a solution-precipitation process, and the Temperature dependence of electrical conductivity of the MWNT/HDPE composites was studied. An obvious Positive Temperature coefficient (PTC) effect was found in the MWNT/HDPE composites with a relatively low MWNT concentration. Compared with that of carbon black (CB)/HDPE composite, the negative Temperature coefficient (NTC) effect of the MWNT/HDPE composite at Temperature above the melting Temperature of HDPE was much less obvious and could be further eliminated after 80 kGy γ-ray irradiation. The mechanism of the PTC and NTC effects in MWNT/HDPE composites was discussed. © 2005 American Institute of Physics

X. J. He - One of the best experts on this subject based on the ideXlab platform.

  • Positive Temperature coefficient effect in multiwalled carbon nanotube high density polyethylene composites
    Applied Physics Letters, 2005
    Co-Authors: X. J. He, J. H. Du, Z. Ying, Huiming Cheng
    Abstract:

    Muldwalled carbon nanotube (MWNT)-filled high-density polyethylene (HDPE) composites were prepared by a solution-precipitation process, and the Temperature dependence of electrical conductivity of the MWNT/HDPE composites was studied. An obvious Positive Temperature coefficient (PTC) effect was found in the MWNT/HDPE composites with a relatively low MWNT concentration. Compared with that of carbon black (CB)/HDPE composite, the negative Temperature coefficient (NTC) effect of the MWNT/HDPE composite at Temperature above the melting Temperature of HDPE was much less obvious and could be further eliminated after 80 kGy gamma-ray irradiation. The mechanism of the PTC and NTC effects in MWNT/HDPE composites was discussed. (C) 2005 American Institute of Physics.

  • Positive Temperature coefficient effect in multiwalled carbon nanotube/high-density polyethylene composites
    Applied Physics Letters, 2005
    Co-Authors: X. J. He, J. H. Du, Z. Ying, Hui-ming Cheng
    Abstract:

    Multiwalled carbon nanotube (MWNT)-filled high-density polyethylene (HDPE) composites were prepared by a solution-precipitation process, and the Temperature dependence of electrical conductivity of the MWNT/HDPE composites was studied. An obvious Positive Temperature coefficient (PTC) effect was found in the MWNT/HDPE composites with a relatively low MWNT concentration. Compared with that of carbon black (CB)/HDPE composite, the negative Temperature coefficient (NTC) effect of the MWNT/HDPE composite at Temperature above the melting Temperature of HDPE was much less obvious and could be further eliminated after 80 kGy γ-ray irradiation. The mechanism of the PTC and NTC effects in MWNT/HDPE composites was discussed. © 2005 American Institute of Physics

Hui-ming Cheng - One of the best experts on this subject based on the ideXlab platform.

  • Positive Temperature coefficient effect in multiwalled carbon nanotube/high-density polyethylene composites
    Applied Physics Letters, 2005
    Co-Authors: X. J. He, J. H. Du, Z. Ying, Hui-ming Cheng
    Abstract:

    Multiwalled carbon nanotube (MWNT)-filled high-density polyethylene (HDPE) composites were prepared by a solution-precipitation process, and the Temperature dependence of electrical conductivity of the MWNT/HDPE composites was studied. An obvious Positive Temperature coefficient (PTC) effect was found in the MWNT/HDPE composites with a relatively low MWNT concentration. Compared with that of carbon black (CB)/HDPE composite, the negative Temperature coefficient (NTC) effect of the MWNT/HDPE composite at Temperature above the melting Temperature of HDPE was much less obvious and could be further eliminated after 80 kGy γ-ray irradiation. The mechanism of the PTC and NTC effects in MWNT/HDPE composites was discussed. © 2005 American Institute of Physics

Huiming Cheng - One of the best experts on this subject based on the ideXlab platform.

  • Positive Temperature coefficient effect in multiwalled carbon nanotube high density polyethylene composites
    Applied Physics Letters, 2005
    Co-Authors: X. J. He, J. H. Du, Z. Ying, Huiming Cheng
    Abstract:

    Muldwalled carbon nanotube (MWNT)-filled high-density polyethylene (HDPE) composites were prepared by a solution-precipitation process, and the Temperature dependence of electrical conductivity of the MWNT/HDPE composites was studied. An obvious Positive Temperature coefficient (PTC) effect was found in the MWNT/HDPE composites with a relatively low MWNT concentration. Compared with that of carbon black (CB)/HDPE composite, the negative Temperature coefficient (NTC) effect of the MWNT/HDPE composite at Temperature above the melting Temperature of HDPE was much less obvious and could be further eliminated after 80 kGy gamma-ray irradiation. The mechanism of the PTC and NTC effects in MWNT/HDPE composites was discussed. (C) 2005 American Institute of Physics.

J. H. Du - One of the best experts on this subject based on the ideXlab platform.

  • Positive Temperature coefficient effect in multiwalled carbon nanotube high density polyethylene composites
    Applied Physics Letters, 2005
    Co-Authors: X. J. He, J. H. Du, Z. Ying, Huiming Cheng
    Abstract:

    Muldwalled carbon nanotube (MWNT)-filled high-density polyethylene (HDPE) composites were prepared by a solution-precipitation process, and the Temperature dependence of electrical conductivity of the MWNT/HDPE composites was studied. An obvious Positive Temperature coefficient (PTC) effect was found in the MWNT/HDPE composites with a relatively low MWNT concentration. Compared with that of carbon black (CB)/HDPE composite, the negative Temperature coefficient (NTC) effect of the MWNT/HDPE composite at Temperature above the melting Temperature of HDPE was much less obvious and could be further eliminated after 80 kGy gamma-ray irradiation. The mechanism of the PTC and NTC effects in MWNT/HDPE composites was discussed. (C) 2005 American Institute of Physics.

  • Positive Temperature coefficient effect in multiwalled carbon nanotube/high-density polyethylene composites
    Applied Physics Letters, 2005
    Co-Authors: X. J. He, J. H. Du, Z. Ying, Hui-ming Cheng
    Abstract:

    Multiwalled carbon nanotube (MWNT)-filled high-density polyethylene (HDPE) composites were prepared by a solution-precipitation process, and the Temperature dependence of electrical conductivity of the MWNT/HDPE composites was studied. An obvious Positive Temperature coefficient (PTC) effect was found in the MWNT/HDPE composites with a relatively low MWNT concentration. Compared with that of carbon black (CB)/HDPE composite, the negative Temperature coefficient (NTC) effect of the MWNT/HDPE composite at Temperature above the melting Temperature of HDPE was much less obvious and could be further eliminated after 80 kGy γ-ray irradiation. The mechanism of the PTC and NTC effects in MWNT/HDPE composites was discussed. © 2005 American Institute of Physics