Results 41 to 50 of about 274,262 (149)

Achieving Superior Strength–Ductility Synergy in an L12‐Type Ni3Al‐Based High‐Entropy Aluminide via Architecting Hierarchical Heterostructure

open access: yesRare Metals, Volume 45, Issue 11, November 2026.
ABSTRACT Achieving excellent strength–ductility synergy remains a critical scientific challenge for ordered Ni3Al‐based intermetallic alloys. In this work, a hierarchical heterostructure was deliberately architected in a novel L12‐type Ni3Al‐based high‐entropy aluminide, (Ni38.5Co38.5Al11.5Ti5Cr4.5Ta2)99.7B0.1C0.2 (at%), through a simple and cost ...
Zheng Liu   +3 more
wiley   +1 more source

聚苯硫醚结晶形态的光散射研究

open access: yes四川大学学报. 自然科学版, 1993
用小角激光散射法研究聚苯硫醚的结晶形态.实验表明,聚苯硫醚薄膜的光散射图Hv和Vv与理论计算结果一致。研究了不同结晶温度对聚苯硫醚球晶形态的影响,随着结晶温度的升高,散射图Hv变小,球晶变大,并估算了球晶半径的大小。
王良盛, 徐晓菲
doaj  

Eutectic Topology Regulates Deformation Pathways Enabling Synergistic Superelasticity and Strength in EBF3‐Fabricated NiTiNb Alloys

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT The deformation behavior of NiTiNb shape memory alloys is governed by microstructural heterogeneity, specifically the interconnected topology of the β‐Nb phase. The regulatory role of the eutectic structure in load partitioning and the evolution of deformation mechanisms, particularly in high‐Nb systems, has not been clearly understood.
Qingda Zhang   +11 more
wiley   +1 more source

铝氧水合物反应结晶介稳区调控与结晶机理

open access: yes, 2016
高纯氧化铝作为一种重要的高附加值化学品,在光学、新型发光材料、医疗、化工以及材料等领域用途十分广泛。本文主要研究铝-有机碱溶液反应结晶-诱导调控制备高纯水合氧化铝新工艺中铝-水反应、产物晶型、粒度调控等技术问题,以介稳区和介稳中间体调控以及反应结晶过程机理为科学问题,通过在线、离线手段对过程进行解耦分析,研究了铝-水反应机理与铝氧水合物结晶机理。主要取得如下结果:(1)首先研究了铝水反应动力学与有机碱界面作用机理,确定铝-水反应速率关于碱浓度、铝箔表面的反应级数为1,活化能为45.92 kJ/mol,
王鸿奇
core  

Light‐Synergistic Enhanced Synaptic Devices Toward Superadditive In‐Sensor Computing

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Conventional neuromorphic devices face challenges in achieving efficient integration of light sensing and synaptic computation because of structural and material limitations. In this work, we developed an indium‐tin‐zinc oxide/transparent gelatin electrolyte synaptic transistor incorporating rare metal indium.
Wei Zhong   +16 more
wiley   +1 more source

Strain‐Dependent Evolution of Fatigue and Oxidation Damage in a Nickel‐Based Single‐Crystal Superalloy: The Dominant Mechanism Under Low‐Cycle and Thermomechanical Fatigue

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Systematic studies on the fatigue deformation and damage mechanisms of nickel‐based single‐crystal superalloys (Ni‐SXs) under combined thermal and mechanical conditions remain limited, particularly regarding the influence of strain amplitude on the relative contributions of fatigue and oxidation damage.
Liyin Zhang   +7 more
wiley   +1 more source

一种小晶粒稀土-ZSM5/ZSM11共结晶沸石的合成方法

open access: yes, 2010
一种小晶粒稀土-ZSM5/ZSM11共结晶沸石的合成方法,该方法以硅源、铝源、无机碱(或无机酸)、1,6-己二胺、稀土元素的盐、添加剂和去离子水为反应原料,先经60~98℃低温老化处理4~30h,再经160~195℃晶化15~70h,水热合成出小晶粒稀土-ZSM5/ZSM11共结晶沸石;合成出的产物既有ZSM-5又有ZSM-11分子筛的结构特征,其平均粒度小于500nm,其中ZSM-5分子筛占该共结晶沸石的重量百分比为10~90%;本发明的特点在于反应原料先在低温老化处理一定时间再进行高温晶化 ...
徐龙伢   +5 more
core  

Synergistic Grain Refinement and Crystal Plane Reconstruction via Shot‐Peening for Highly Reversible Zn Anodes

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Aqueous Zn‐ion batteries (AZIBs) are expected to become one of the most promising candidates for large‐scale energy storage, but are impeded by uncontrollable dendrite growth and parasitic reactions. In this study, we propose a simple mechanical shot‐peening (SP) approach for restructuring commercial Zn foils into highly exposed (002)‐textured
Xu Ma   +7 more
wiley   +1 more source

基于RSM方法优化诱导结晶除氟研究

open access: yesGongye shui chuli
为了考察氟磷酸钙诱导结晶除氟效果,利用Box-Behnken design(BBD)设计氟磷酸钙诱导结晶除氟实验,建立了以氟离子去除率为响应值的二次回归模型并通过方差分析(ANOVA)比较了n(Ca)/n(F)、n(P)/n(F)、晶种投加量3个参数对氟离子去除率影响的显著性。通过RSM优化氟磷酸钙诱导结晶除氟工艺参数,并通过最优工艺条件下实验结果对模型进行了验证。RSM优化的最佳条件:n(Ca)/n(F)=15、n(P)/n(F)=8.918、晶种投加量9.208 g/L,理论最佳除氟率为97.26%,
郑威城, 秦树林, 王忠泉, 陈霞
doaj   +2 more sources

Oxalate crystal-related acute renal injury caused by orlistat: A case report. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban, 2022
Cui X   +9 more
europepmc   +1 more source

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