Results 1 to 10 of about 4,274,441 (166)
四川大学学报. 自然科学版, 2007 以量子Heisenberg模型为基础研究了磁性薄膜的热动力学性质.采用变分累积展开方法,以图解方式给出了简立方格点上自旋为1/2的量子Heisenberg磁性薄膜不同晶面的热动力学性质.计算临界约化温度、内能和比热到三级累积展开,分析不同晶面的临界约化温度随原子层数的变化,并对结果进行比较;同时比较和讨论了薄膜原子层数对不同晶面的内能和比热变化的影响.
袁敏
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High‐Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium‐Ion Batteries
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The massive stockpiling of copper slag (CS) presents severe environmental and resource‐waste challenges. Existing strategies for CS valorization typically yield low‐value‐added products. Herein, we propose an innovative hierarchical regulation approach to transform CS into high‐performance LiFePO4 (LFP) cathode materials.
Yuyun Li +5 more
wiley +1 more source
四川大学学报. 自然科学版, 2000 应用极端条件下细菌生长的热动力学模型 ,用微量量热法研究嗜热菌、嗜冷菌的热动力学性质 ,分别测量了嗜热菌、嗜冷菌在不同温度下的生长热谱曲线 ,求出了细菌生长的动力学参数与活化态的活化参数 ,并通过计算机多元回归分析 ,得到了细菌生长的最佳生长温度及生长温度范围 ...
相艳, 南照东, 曾宪诚, 张洪林
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In Situ Formation of the Li3Bi Alloy Phase Interface for Robust Garnet Solid‐State Lithium Batteries
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Garnet‐type electrolyte Li6.4La3Zr1.4Ta0.6O12 (LLZTO) is a promising component for commercializing solid‐state batteries owing to its wide electrochemical window, good stability, and high shear modulus. However, poor interface wettability and lithium dendrite growth limit the practical application of the LLZTO electrolyte.
Pengfei You +8 more
wiley +1 more source
四川大学学报. 自然科学版, 2010 利用基于密度泛涵理论的全势能线性糕模轨函法计算了闪锌矿（ZB）和岩盐（RS）结构的SiC的相变和热动力学性质.结果发现SiC从ZB结构到RS结构的相变压力为55.9GPa,与其他计算结果一致.通过实验测得SiC在高温高压条件下的性质存在较大困难,因此基于准谐德拜模型本文研究了ZB结构和RS结构的热动力学性质,并且成功得到了相对体积V/V0随压强P,热膨胀系数随温度T,德拜温度■和热容Cv随压强,以及热容随温度的变化关系,其中相对体积V/V0随压强P的变化关系与实验结果吻合的较好.
王海燕, 李旭升, 历长云
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Lightweight and lead‐free radiation shielding materials remain urgently needed. This work designed a fluorite high‐entropy oxide (FHEO) system through a combined computational–experimental route. Density functional theory based on special quasi‐random structures was used to identify thermodynamically stable fluorites from a wide compositional ...
Xiangjie Duan +9 more
wiley +1 more source
四川大学学报. 自然科学版, 1959 由于高温高压下水蒸汽在热能动力方面用得相当广泛,所以必须要研究他的物理性质。关于这方面的工作可分为两个方向,其一将已有的数据整理加工使之更为准确,其二则是扩大研究的范围。自1954年到现在短短几年中就连续举行了两次国际性会议来专门讨论水和水蒸汽的性质。这个事实可表明研究这一问题的重要性。在最近的会议上的任务是总结研究工作的成果,将能力学中用到的水蒸汽热力学性质的基本数据统一起来。
田安民, M.X.卡拉别奇扬茨
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The pre‐existing α‐Fe crystals have important effects on the precipitation and growth of nanocrystals and finally determine the comprehensive soft magnetic properties (SMPs) of the nanocrystalline alloys (NAs). In this work, a high content of Cu elements has been added to Nanomet‐type alloys to enhance the gradient heterogeneity in order to ...
Lei Xie +6 more
wiley +1 more source
Gaoya dianqi, 2010 等离子体的宏观特性和内部微观过程紧密联系在一起。研究等离子体粒子组分构成以及对组分有强烈依赖关系的热力学参数、输运参数等物性参数,将为深入了解等离子体的形成机理奠定微观理论基础。笔者从元素化学计量守恒、道尔顿分压定律、质量作用定律、等离子体电荷准中性条件出发,总结了计算平衡态和非平衡态等离子体化学组分的基本方法。在此基础上,介绍了等离子体热力学参数（质量密度、焓值、熵值与比热）和输运参数的计算方法,并阐述了目前等离子体物性参数计算研究中存在的主要问题。
王伟宗 +4 more
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Direct Observation of Matrix‐to‐Precipitate Elemental Diffusion in Severe Plastic Deformation
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Elemental redistribution, particularly the solute exchange between the matrix and precipitates, is a central issue in alloys subjected to severe plastic deformation (SPD). To elucidate this behavior, a nickel–aluminum bronze (NAB) alloy was processed by high‐pressure torsion (HPT), and its microstructural evolution was systematically ...
Xiaobin Yang +9 more
wiley +1 more source