Results 21 to 30 of about 953,528 (137)
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Pore engineering reduces the thermal conductivity of thermoelectric materials, yet typically degrades electrical conductivity by enhancing carrier scattering—a long‐standing trade‐off. Here, we overcome this trade‐off in SrTiO3‐based entropy‐engineered ceramics via a one‐step synergistic strategy: using poly(methyl methacrylate) (PMMA) as a ...
Ziyao Wei +7 more
wiley +1 more source
Functionalized Silica‐Constructed Self‐Supporting Composite Separator for Lithium Metal Batteries
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Lithium metal batteries (LMBs) are considered highly promising next‐generation energy storage systems owing to their exceptionally high theoretical specific capacity and ultralow electrochemical potential. Nevertheless, the practical deployment of LMBs is still severely restricted by the uncontrollable formation and propagation of lithium ...
Li Chen +6 more
wiley +1 more source
Biomass‐Derived Laser‐Induced Graphene: From Precursor Chemistry to Device Integration
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Laser direct writing provides a mask‐free route for converting suitable carbon‐containing precursors into patterned, porous, and conductive laser‐induced graphene (LIG) networks. Although LIG was initially demonstrated mainly using aromatic synthetic polymers, such as polyimide, biomass precursors introduce renewable feedstocks with highly ...
Wanjun Yin +10 more
wiley +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Additive manufacturing of zinc‐magnesium (Zn‐Mg) alloys via laser powder bed fusion (LPBF) has gained significant recognition as a promising candidate for bone repair. However, the presence of coarse yet brittle eutectic phases in the fabricated Zn‐Mg alloys tends to induce premature stress concentration and resultant fracture during ...
Zhi Dong +10 more
wiley +1 more source
, 2023 本发明实施例涉及一种REV连通孔隙空间的构建方法、装置，所述方法包括：获取REV尺度微米CT图像；确定所述REV尺度微米CT图像中，各个微米孔隙簇之间的拓扑关系；根据各个微米孔隙簇之间的拓扑关系，按照最短路径原理在二值图像中建立纳米连接通道的中轴线以定位这些通道；以实验渗透率为约束确定所述纳米连接通道的半径，建立REV连通孔隙空间。如此基于REV尺度微米CT图像建立REV连通孔隙空间，可以反映纳米尺度孔隙空间和微米尺度孔隙空间的全部信息 ...
林缅 +5 more
core +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Aiming at the problems of insufficient forming quality and poor surface performance in the preparation of Ti‐6Al‐4V alloy by laser powder bed fusion (LPBF), this study proposed a laser in situ forging additive manufacturing (LIF‐AM) technology, which integrates LPBF with femtosecond laser in situ shock forging and realizes defect control and ...
Peng He +10 more
wiley +1 more source
, 2004 在流动剪切应力为残余剪切强度时,对剪切带内部的局部孔隙比和平均孔隙比进行了理论分析。对于应变软化阶段剪胀的岩土材料,基于梯度塑性理论验证了在剪切带内部存在最大孔隙比的客观事实,最大孔隙比具有两层含义,即局部(和坐标有关)最大孔隙比和平均最大孔隙比,分别解释了相关的实验现象。对影响剪切带内部平均最大孔隙度的因素进行了分析;给出了剪切软化模量、残余剪切强度及扩容角对剪切带内部最大孔隙度的影响规律。在软化过程中,剪切带中部最大孔隙度逐渐增加,直至残余强度剪切带中部最大孔隙度达到最大值 ...
王学滨, 潘一山, 马剑, 姚再兴
core +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Lignin hydrogenolysis is a promising route to separable aromatic monomers, yet practical upgrading is still hindered by macromolecular mass‐transfer limitations and the aggregation/deactivation of metal sites. Herein, we propose a “dual‐confinement” strategy to construct ultrafine Ru nanoclusters supported on lignin‐based N‐doped hierarchical ...
Tianjin Li +11 more
wiley +1 more source
Shuitu Baochi Xuebao, 2019 土壤大孔隙是土壤水分、空气、化学物质及污染物优先运移的主要通道，对其形成机制的研究至关重要。以往对大孔隙的量化局限于传统方法，大孔隙三维形态特征的量化分析及其影响因素是目前大孔隙的研究重点。利用CT扫描及图像处理分析技术量化大孔隙三维形态特征参数，同时测定土壤基本理化性质及根长密度，分析土壤大孔隙三维特征对土壤理化性质及根系的响应。结果表明：土壤密度及土壤砂粒含量与大孔隙特征参数不存在相关关系）土壤有机质含量、土壤根长密度与大孔隙体积密度、大孔隙表面积密度、大孔隙数量密度呈现显著正相关关系 ...
孟晨, 牛健植, 骆紫藤, 尹正聪
doaj
Shuitu Baochi Xuebao, 2020 为探究喀斯特浅层裂隙所赋存土壤各土层渗透性特征及影响因素，测定了喀斯特典型的浅层裂隙中赋存土壤0—10，10—20，20—30，30—50，50—70，70—100 cm土层的饱和导水率、机械组成、容重、非毛管孔隙度、毛管孔隙度、总孔隙度和有机碳含量等土壤属性。结果表明：（1）喀斯特浅层裂隙中各土壤属性均随着土层深度变化呈现出递增或递减的趋势，其中容重、黏粒含量、毛管孔隙度均随着土层深度而增长，饱和导水率、有机碳、非毛管孔隙度等土壤属性随土层深度的变化规律相反，呈递减趋势。（2 ...
李焱秋 +6 more
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