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  1. No Access

    Article

    Influence of Intercritical Temperature on the Microstructure and Mechanical Properties of 6.5 Pct Ni Steel Processed by Ultra-fast Cooling, Intercritical Quenching and Tempering

    A novel treatment comprised of ultra-fast cooling, intercritical quenching and tempering is proposed to modify the microstructure and improve the mechanical properties of low-concentration Ni-containing steel ...

    Qi-Yuan Chen, Wei-Na Zhang, Zhang-Long **e… in Metallurgical and Materials Transactions A (2020)

  2. No Access

    Article

    Correlation between reversed austenite and mechanical properties in a low Ni steel treated by ultra-fast cooling, intercritical quenching and tempering

    In this study, the correlation between reversed austenite formed at different tempering temperatures and mechanical properties in a low Ni steel treated by ultra-fast cooling, intercritical quenching and tempe...

    Qi-Yuan Chen, Jia-Kuan Ren, Zhang-Long **e, Wei-Na Zhang… in Journal of Materials Science (2020)

  3. No Access

    Article

    Catalytic-Oxidative Leaching of Low-Grade Complex Zinc Ore by Cu (II) Ions Produced from Copper Ore in Ammonia-Ammonium Sulfate Solution

    The catalytic-oxidative leaching of a mixed ore, which consists of low-grade oxide copper ore and oxide zinc ore containing ZnS, was investigated in ammonia-ammonium sulfate solution. The effect of the main pa...

    Zhi **ong Liu, Zhou Lan Yin, Hui ** Hu… in Metallurgical and Materials Transactions B (2012)

  4. No Access

    Article

    Excess molar enthalpies for ternary mixtures of (methanol or ethanol + water + tributyl phosphate) at T = 298.15 K

    Excess molar enthalpies for two ternary mixtures of {x 1 tributylphosphate (TBP) + x 2 water + x 3 methanol/ethanol} were measured at T = 298.15 K and atmospheric p...

    Hong-Li Liu, Shi-Jun Liu, Qi-Yuan Chen in Journal of Thermal Analysis and Calorimetry (2012)

  5. No Access

    Article

    Influences of seed size and number on agglomeration in synthetic bayer liquors

    By means of Malvern laser particle size analyzer and scanning electron microscopy, the influences of seed size and number on agglomeration in Bayer process were investigated. Agglomeration is almost finished i...

    Bin Zhang PhD, Ke-chao Zhou, Qi-yuan Chen in Journal of Central South University of Tec… (2006)

  6. No Access

    Article

    Syntheses, Crystal Structures and Third-order Nonlinear Optical Properties of Coordination Polymers {[Et4N][Ag2I3]}n and [CuBr(C10H8N2S2)]n

    Coordination polymers {[Et4N][Ag2I3]} n (1) and [CuBr(C10H8N2S2)] n (2) were prepared by standard Schlenk techniques. Their X-ray measurements...

    Jian-Liang Zhou, Qi-Yuan Chen, Ying-Ying Gu, Guang-Quan Mei… in Transition Metal Chemistry (2005)

  7. No Access

    Article

    Thermal behaviors of deactivation catalysts for synthesizing 2, 3, 5-trimethylhydroquinone

    The thermal behaviors of the deposits on supported noble metal catalysts for synthesizing 2, 3, 5-trimethylhydroquinone by DSC were studied. The results show that the supported Pd catalysts have two exothermic...

    Dong Qian PhD, Ai-hua Shi, Qi-yuan Chen… in Journal of Central South University of Tec… (2005)

  8. No Access

    Article

    Synthesis and characterization of arsenate antimonic acid AAAc(1 : 1)

    The AAAc(1 : 1) was synthesized in water by As2O3 and Sb2O3 with molar ratio of 1 : 1. AAAc(1 : 1) was characterized by Raman, IR, TG/DTG, DSC, XPS and XRD. The results show that there are four peaks to v s of As...

    Xue-wen Wang PhD, Qi-yuan Chen, Zhou-lan Yin… in Journal of Central South University of Tec… (2005)

  9. No Access

    Article

    Synthesis and application of antimony pent(isooctyl thioglycollate)

    A new type of thermal stabilizer, antimony pent(isooctyl thioglycollate) (Sb(SCH2COOC8H17)5), was synthesized by using antimony trioxide, isooctanol and thioglycolic acid in 2 steps. Firstly, antimony trioxide wa...

    You-nian Liu, Hong-bing Li, Wan-gen Shu… in Journal of Central South University of Tec… (2005)

  10. No Access

    Article

    Kinetic study of LiMn2O4 in process of lithium intercalation

    Exchange current density of spinel LiMn2O4 was studied by linear polarization. The relationship of the kinetic property with the structure of spinel LiMn2O4 was investigated by studying the effect of the do** a...

    Ming-fei Xu PhD, **ng-hai Li, Qi-yuan Chen in Journal of Central South University of Tec… (2005)

  11. No Access

    Article

    Massic heat capacities of ammonium penta- and tetra- molybdates

    Single phases of ammonium penta- and tetra- molybdates were prepared. The massic heat capacities at normal pressure below their decomposition temperatures were measured by drop method. The relationships of the...

    Zhou-lan Yin, Qi-yuan Chen, **-min Zhang… in Journal of Central South University of Tec… (2000)

  12. No Access

    Article

    Separation and determination of sulfur with different valance in polysulfide mixture

    A new process of separating sulfur with different valance from polysulfide mixtures was developed. Sulfide, sulfite and sulfur were separated by adding acetic acid in one step. The polysulfide mixture, sulfite...

    Ji-hong Zhou, Qi-yuan Chen, **-min Zhang… in Journal of Central South University of Tec… (2000)

  13. No Access

    Article

    Synthesis and thermal stability of antimony tris (thioethyl stearate) for PVC

    A novel type of thermal stabilizer-antimony tris (thioethyl stearate) (ATS) was synthsized. Its thermal stability was measured by heat-aging oven test when incorporated into PVC. ATS was synthesized from stear...

    You-nian Liu, Chun-jiang Wang, Wan-gen Shu… in Journal of Central South University of Tec… (2000)