The Experts below are selected from a list of 206826 Experts worldwide ranked by ideXlab platform

Xianglong Luo - One of the best experts on this subject based on the ideXlab platform.

  • Investigation on crystallization of TiO2–Water nanofluids and Deionized Water
    Applied Energy, 2012
    Co-Authors: Ying Chen, Lisi Jia, Xianglong Luo
    Abstract:

    Two titania–Water (TiO2–Water) nanofluids were prepared by dispersing TiO2 nanoparticles in rod shapes (rutile TiO2) and in spherical shapes (anatase TiO2) into Deionized Water. The effect of the TiO2 nanoparticles on the crystallization behaviors of the nanofluids were investigated using differential scanning calorimetry (DSC). The weight fraction of the TiO2 nanoparticles was 0.05%, 0.30% and 0.70%. The experimental results show that in the cooling rate range of 1.5–9.0°C/min, the nanofluids with rutile TiO2 nanoparticles had higher crystallization temperatures compared with Deionized Water and the nanofluids with anatase TiO2 nanoparticles, and the heat of crystallization of the rutile TiO2 nanofluid was larger than that of the anatase TiO2 nanofluid. It is found that the rutile TiO2 nanofluid is more suitable than the anatase TiO2 nanofluid for ice storage system under the experimental conditions. Moreover, some unexpected data were obtained, which show that the shapes of the crystallization temperature curves of the nanofluids were like symbols of inverse “N” at 0.5–9.0°C/min, and that the crystallization temperatures of some of the nanofluids were lower than that of the Deionized Water at low cooling rates. The mechanisms for the unusual phenomenon were discussed.

  • investigation on crystallization of tio2 Water nanofluids and Deionized Water
    Applied Energy, 2012
    Co-Authors: Ying Chen, Lisi Jia, Xianglong Luo
    Abstract:

    Two titania–Water (TiO2–Water) nanofluids were prepared by dispersing TiO2 nanoparticles in rod shapes (rutile TiO2) and in spherical shapes (anatase TiO2) into Deionized Water. The effect of the TiO2 nanoparticles on the crystallization behaviors of the nanofluids were investigated using differential scanning calorimetry (DSC). The weight fraction of the TiO2 nanoparticles was 0.05%, 0.30% and 0.70%. The experimental results show that in the cooling rate range of 1.5–9.0°C/min, the nanofluids with rutile TiO2 nanoparticles had higher crystallization temperatures compared with Deionized Water and the nanofluids with anatase TiO2 nanoparticles, and the heat of crystallization of the rutile TiO2 nanofluid was larger than that of the anatase TiO2 nanofluid. It is found that the rutile TiO2 nanofluid is more suitable than the anatase TiO2 nanofluid for ice storage system under the experimental conditions. Moreover, some unexpected data were obtained, which show that the shapes of the crystallization temperature curves of the nanofluids were like symbols of inverse “N” at 0.5–9.0°C/min, and that the crystallization temperatures of some of the nanofluids were lower than that of the Deionized Water at low cooling rates. The mechanisms for the unusual phenomenon were discussed.

Jun Yang - One of the best experts on this subject based on the ideXlab platform.

  • tribological properties of bronze cr ag alloy in seaWater nacl solution and Deionized Water
    Tribology International, 2016
    Co-Authors: Kongjie Jin, Zhuhui Qiao, Shengyu Zhu, Jun Cheng, Bing Yin, Jun Yang
    Abstract:

    Abstract Tribological properties of bronze–Cr–Ag alloy sliding against AISI 52,100 steel were investigated in Deionized Water, 3.5 wt% NaCl solution and seaWater. The friction coefficient and wear rate of the alloy follow the sequence: Deionized Water>NaCl solution>seaWater. In NaCl solution and seaWater, Cu 2 O, Al(OH) 3 , FeOOH and Fe 2 O 3 form on the surface because of chloride corrosion. In seaWater, CaCO 3 and Mg(OH) 2 are adsorbed on the surface. The above compounds play an important role in reducing the friction and wear. The study of tribocorrosion mechanism is beneficial for bronze–Cr–Ag alloy to be used in sliding bearing under seaWater condition.

  • Tribological properties of bronze–Cr–Ag alloy in seaWater, NaCl solution and Deionized Water
    Tribology International, 2016
    Co-Authors: Kongjie Jin, Zhuhui Qiao, Shengyu Zhu, Jun Cheng, Bing Yin, Jun Yang
    Abstract:

    Abstract Tribological properties of bronze–Cr–Ag alloy sliding against AISI 52,100 steel were investigated in Deionized Water, 3.5 wt% NaCl solution and seaWater. The friction coefficient and wear rate of the alloy follow the sequence: Deionized Water>NaCl solution>seaWater. In NaCl solution and seaWater, Cu 2 O, Al(OH) 3 , FeOOH and Fe 2 O 3 form on the surface because of chloride corrosion. In seaWater, CaCO 3 and Mg(OH) 2 are adsorbed on the surface. The above compounds play an important role in reducing the friction and wear. The study of tribocorrosion mechanism is beneficial for bronze–Cr–Ag alloy to be used in sliding bearing under seaWater condition.

  • Frictional properties of Ti3AlC2 ceramic against different counterparts in Deionized Water and artificial seaWater
    Ceramics International, 2016
    Co-Authors: Shuai Wang, Zhuhui Qiao, Shengyu Zhu, Jun Cheng, Jun Yang, Weimin Liu
    Abstract:

    In this study, the tribological behavior of Ti3AlC2 in both Deionized Water and artificial seaWater was investigated. The tribological mechanisms of different tribopairs in the two aqueous environments were discussed in detail. When sliding against AISI 316L stainless steel, Al2O3 and Si3N4 in the two environments, Ti3AlC2 displayed poor tribological properties, and the mainly wear mechanisms were mechanical wear by counterparts. The tribo-chemical products mainly consisted of TiO2 and Al2O3 in both the liquids. However, the Ti3AlC2/SiC tribopair could provide excellent lubrication in both Deionized Water and artificial seaWater. A smooth tribofilm was formed on the Ti3AlC2 worn surface, where the tribofilm was the mixture of TiO2, Al2O3 and SiOx. The tribofilm was believed to be responsible for the excellent lubricating effect. In light of these results, the Ti3AlC2/SiC tribopair held promise to serve in marine tribological applications.

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

  • Investigation on crystallization of TiO2–Water nanofluids and Deionized Water
    Applied Energy, 2012
    Co-Authors: Ying Chen, Lisi Jia, Xianglong Luo
    Abstract:

    Two titania–Water (TiO2–Water) nanofluids were prepared by dispersing TiO2 nanoparticles in rod shapes (rutile TiO2) and in spherical shapes (anatase TiO2) into Deionized Water. The effect of the TiO2 nanoparticles on the crystallization behaviors of the nanofluids were investigated using differential scanning calorimetry (DSC). The weight fraction of the TiO2 nanoparticles was 0.05%, 0.30% and 0.70%. The experimental results show that in the cooling rate range of 1.5–9.0°C/min, the nanofluids with rutile TiO2 nanoparticles had higher crystallization temperatures compared with Deionized Water and the nanofluids with anatase TiO2 nanoparticles, and the heat of crystallization of the rutile TiO2 nanofluid was larger than that of the anatase TiO2 nanofluid. It is found that the rutile TiO2 nanofluid is more suitable than the anatase TiO2 nanofluid for ice storage system under the experimental conditions. Moreover, some unexpected data were obtained, which show that the shapes of the crystallization temperature curves of the nanofluids were like symbols of inverse “N” at 0.5–9.0°C/min, and that the crystallization temperatures of some of the nanofluids were lower than that of the Deionized Water at low cooling rates. The mechanisms for the unusual phenomenon were discussed.

  • investigation on crystallization of tio2 Water nanofluids and Deionized Water
    Applied Energy, 2012
    Co-Authors: Ying Chen, Lisi Jia, Xianglong Luo
    Abstract:

    Two titania–Water (TiO2–Water) nanofluids were prepared by dispersing TiO2 nanoparticles in rod shapes (rutile TiO2) and in spherical shapes (anatase TiO2) into Deionized Water. The effect of the TiO2 nanoparticles on the crystallization behaviors of the nanofluids were investigated using differential scanning calorimetry (DSC). The weight fraction of the TiO2 nanoparticles was 0.05%, 0.30% and 0.70%. The experimental results show that in the cooling rate range of 1.5–9.0°C/min, the nanofluids with rutile TiO2 nanoparticles had higher crystallization temperatures compared with Deionized Water and the nanofluids with anatase TiO2 nanoparticles, and the heat of crystallization of the rutile TiO2 nanofluid was larger than that of the anatase TiO2 nanofluid. It is found that the rutile TiO2 nanofluid is more suitable than the anatase TiO2 nanofluid for ice storage system under the experimental conditions. Moreover, some unexpected data were obtained, which show that the shapes of the crystallization temperature curves of the nanofluids were like symbols of inverse “N” at 0.5–9.0°C/min, and that the crystallization temperatures of some of the nanofluids were lower than that of the Deionized Water at low cooling rates. The mechanisms for the unusual phenomenon were discussed.

Lisi Jia - One of the best experts on this subject based on the ideXlab platform.

  • Investigation on crystallization of TiO2–Water nanofluids and Deionized Water
    Applied Energy, 2012
    Co-Authors: Ying Chen, Lisi Jia, Xianglong Luo
    Abstract:

    Two titania–Water (TiO2–Water) nanofluids were prepared by dispersing TiO2 nanoparticles in rod shapes (rutile TiO2) and in spherical shapes (anatase TiO2) into Deionized Water. The effect of the TiO2 nanoparticles on the crystallization behaviors of the nanofluids were investigated using differential scanning calorimetry (DSC). The weight fraction of the TiO2 nanoparticles was 0.05%, 0.30% and 0.70%. The experimental results show that in the cooling rate range of 1.5–9.0°C/min, the nanofluids with rutile TiO2 nanoparticles had higher crystallization temperatures compared with Deionized Water and the nanofluids with anatase TiO2 nanoparticles, and the heat of crystallization of the rutile TiO2 nanofluid was larger than that of the anatase TiO2 nanofluid. It is found that the rutile TiO2 nanofluid is more suitable than the anatase TiO2 nanofluid for ice storage system under the experimental conditions. Moreover, some unexpected data were obtained, which show that the shapes of the crystallization temperature curves of the nanofluids were like symbols of inverse “N” at 0.5–9.0°C/min, and that the crystallization temperatures of some of the nanofluids were lower than that of the Deionized Water at low cooling rates. The mechanisms for the unusual phenomenon were discussed.

  • investigation on crystallization of tio2 Water nanofluids and Deionized Water
    Applied Energy, 2012
    Co-Authors: Ying Chen, Lisi Jia, Xianglong Luo
    Abstract:

    Two titania–Water (TiO2–Water) nanofluids were prepared by dispersing TiO2 nanoparticles in rod shapes (rutile TiO2) and in spherical shapes (anatase TiO2) into Deionized Water. The effect of the TiO2 nanoparticles on the crystallization behaviors of the nanofluids were investigated using differential scanning calorimetry (DSC). The weight fraction of the TiO2 nanoparticles was 0.05%, 0.30% and 0.70%. The experimental results show that in the cooling rate range of 1.5–9.0°C/min, the nanofluids with rutile TiO2 nanoparticles had higher crystallization temperatures compared with Deionized Water and the nanofluids with anatase TiO2 nanoparticles, and the heat of crystallization of the rutile TiO2 nanofluid was larger than that of the anatase TiO2 nanofluid. It is found that the rutile TiO2 nanofluid is more suitable than the anatase TiO2 nanofluid for ice storage system under the experimental conditions. Moreover, some unexpected data were obtained, which show that the shapes of the crystallization temperature curves of the nanofluids were like symbols of inverse “N” at 0.5–9.0°C/min, and that the crystallization temperatures of some of the nanofluids were lower than that of the Deionized Water at low cooling rates. The mechanisms for the unusual phenomenon were discussed.

Shengyu Zhu - One of the best experts on this subject based on the ideXlab platform.

  • tribological properties of bronze cr ag alloy in seaWater nacl solution and Deionized Water
    Tribology International, 2016
    Co-Authors: Kongjie Jin, Zhuhui Qiao, Shengyu Zhu, Jun Cheng, Bing Yin, Jun Yang
    Abstract:

    Abstract Tribological properties of bronze–Cr–Ag alloy sliding against AISI 52,100 steel were investigated in Deionized Water, 3.5 wt% NaCl solution and seaWater. The friction coefficient and wear rate of the alloy follow the sequence: Deionized Water>NaCl solution>seaWater. In NaCl solution and seaWater, Cu 2 O, Al(OH) 3 , FeOOH and Fe 2 O 3 form on the surface because of chloride corrosion. In seaWater, CaCO 3 and Mg(OH) 2 are adsorbed on the surface. The above compounds play an important role in reducing the friction and wear. The study of tribocorrosion mechanism is beneficial for bronze–Cr–Ag alloy to be used in sliding bearing under seaWater condition.

  • Tribological properties of bronze–Cr–Ag alloy in seaWater, NaCl solution and Deionized Water
    Tribology International, 2016
    Co-Authors: Kongjie Jin, Zhuhui Qiao, Shengyu Zhu, Jun Cheng, Bing Yin, Jun Yang
    Abstract:

    Abstract Tribological properties of bronze–Cr–Ag alloy sliding against AISI 52,100 steel were investigated in Deionized Water, 3.5 wt% NaCl solution and seaWater. The friction coefficient and wear rate of the alloy follow the sequence: Deionized Water>NaCl solution>seaWater. In NaCl solution and seaWater, Cu 2 O, Al(OH) 3 , FeOOH and Fe 2 O 3 form on the surface because of chloride corrosion. In seaWater, CaCO 3 and Mg(OH) 2 are adsorbed on the surface. The above compounds play an important role in reducing the friction and wear. The study of tribocorrosion mechanism is beneficial for bronze–Cr–Ag alloy to be used in sliding bearing under seaWater condition.

  • Frictional properties of Ti3AlC2 ceramic against different counterparts in Deionized Water and artificial seaWater
    Ceramics International, 2016
    Co-Authors: Shuai Wang, Zhuhui Qiao, Shengyu Zhu, Jun Cheng, Jun Yang, Weimin Liu
    Abstract:

    In this study, the tribological behavior of Ti3AlC2 in both Deionized Water and artificial seaWater was investigated. The tribological mechanisms of different tribopairs in the two aqueous environments were discussed in detail. When sliding against AISI 316L stainless steel, Al2O3 and Si3N4 in the two environments, Ti3AlC2 displayed poor tribological properties, and the mainly wear mechanisms were mechanical wear by counterparts. The tribo-chemical products mainly consisted of TiO2 and Al2O3 in both the liquids. However, the Ti3AlC2/SiC tribopair could provide excellent lubrication in both Deionized Water and artificial seaWater. A smooth tribofilm was formed on the Ti3AlC2 worn surface, where the tribofilm was the mixture of TiO2, Al2O3 and SiOx. The tribofilm was believed to be responsible for the excellent lubricating effect. In light of these results, the Ti3AlC2/SiC tribopair held promise to serve in marine tribological applications.