Results 21 to 30 of about 10,828 (166)
Effect of Heat-treatment on the Structure and Properties of Iron Containing Silicon Carbide Fibers [PDF]
, 2016 以低分子量聚碳硅烷（Low-molecularweightpolycarbosilane，LPCS）与羰基铁Fe(CO)5为原料制得含铁高聚物，然后与高分子量聚碳硅烷（High-molecularweightpolycarbosilane，HPCS）共混制备含铁聚碳硅烷先驱体（Fe-PCS），经熔融纺丝、氧化交联、裂解最终得到含铁SiC纤维。通过放大合成实验，制备了铁含量（基于先驱体质量）分别为0wt%、1wt%、2wt%的三种含铁SiC纤维，将此三种纤维分别在700oC、900oC ...
陆雪川
core
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Integrating light emission and electromagnetic wave (EMW) absorption into a single material opens up possibilities for multienvironmental applications. Herein, we propose a novel “molecular engineering‐pyrolysis conversion” strategy to construct a bifunctional system with tunable photoluminescence and efficient EMW absorption performance.
Renjie Wang +7 more
wiley +1 more source
预热处理方式对亚麻籽油体乳液稳定性的影响Effect of preheating treatments on the stability of flaxseed oil body emulsion
Zhongguo youzhi旨在为亚麻籽油体乳液在食品领域的开发应用提供参考，以不同预热处理（蒸制、热烘、微波）的亚麻籽为原料，采用水提法得到油体和浆液两相，将油体与浆液按质量比4∶ 6混合，经剪切分散后获得亚麻籽油体乳液，观测了油体乳液的外观、微观结构、粒径、水分分布、贮藏稳定性、环境稳定性（pH、盐离子浓度、温度稳定性）及氧化稳定性，以探究预热处理方式对亚麻籽油体乳液稳定性的影响。结果表明：未预热处理组油体乳液和微波预热处理组油体乳液的外观均呈乳白色，而蒸制和热烘预热处理组油体乳液的外观均呈乳黄色；与未预热处理组相比 ...
郑瑞，崔楠楠，周大勇，刘惠麟 ZHENG Rui, CUI Nannan, ZHOU Dayong, LIU Huilin
doaj +1 more source
Investigation of oxygen precipitates and the stability of denuded zone in Czochralski silicon [PDF]
, 2016 铜在硅中不仅具有很大的扩散速率，而且随着温度的降低它的固溶度迅速下降，这两个特性使得铜原子很容易在器件制备过程中沉淀下来，严重影响硅片性能。虽然科研工作者们已经提出了多种工艺使硅片近表面处形成洁净区，但却很少对硅中的氧沉淀和洁净区的稳定性进行深入探讨。因此，本文通过实验分析了氧沉淀和洁净区的稳定性，得出以下结论： （1）研究了热处理方式和铜引入温度对洁净区的形成及其稳定性的影响。研究发现，只有Ramping-低-高热处理能使硅片内生成大量氧沉淀的同时有效形成洁净区。引入铜玷污后，RTP-低 ...
吕耀朝
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Nickel‐based superalloys (Ni‐based superalloys) have attracted extensive attention in laser additive manufacturing (LAM) due to their capability to directly fabricate complex and high‐performance structural components. However, the rapid melting and solidification inherent to LAM result in intense thermal cycling, which induces high residual ...
Tianxiang Lin +9 more
wiley +1 more source
Zhongguo youzhi, 2023 为提高豌豆蛋白的酶水解敏感性及其水解物的抗氧化活性，分别考察95 ℃、10 min的热处理和10 000×g、10 min的高速剪切对豌豆蛋白水解性能的影响并探究其改善原因。结果表明，热处理和高速剪切均提高了豌豆蛋白的水解度、氮回收率以及水解物的抗氧化活性 ...
夏易玄1， 朱玲1， 刘通通2， 吴港城1， 齐希光1， 王立1， 钱海峰1， 张晖1 XIA Yixuan1, ZHU Ling1, LIU Tongtong2, WU Gangcheng1, QI Xiguang1, WANG Li1, QIAN Haifeng1, ZHANG Hui1
doaj +1 more source
Preparation, Properties and Applications of Bi2O3-Rich Lead-Free Sealing Glass Ceramics [PDF]
, 2012 本研究对富含Bi2O3无铅微晶封接玻璃的制备、性能和应用进行了研究；分别利用傅立叶转变红外分析测试仪（FTIR）、拉曼光谱分析仪、X－射线衍射分析仪（XRD）、示差扫描量热分析仪（DSC）、热膨胀系数仪（DIL）和超高电阻测试仪等分别对该封接玻璃的结构、析晶、玻璃化转变温度（Tg）、玻璃软化温度（Tf）、热膨胀系数（α）和电阻率（ρ）等进行研究。 本文理论研究方面，包含下述3项内容。其中，在第（二）项和第（三）项中特别研究了采用“模压成型—热处理方法”制备的样品过程中，热处理温度对其Tg、Tf ...
杜振波
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Soft‐magnetic materials (SMMs) are indispensable for electrification and sustainable energy systems, yet their inherent mechanical fragility fundamentally limits applications under severe mechanical stresses. Enhancing the yield strength of SMMs is essential to prevent the degradation in magnetic performance and failure from plastic ...
Nairan Wang +6 more
wiley +1 more source
The Preparation of Diffusion Barrier Layer and Investigation of the Thermal Stability in Cu Interconnect Technology [PDF]
, 2016 随着集成电路的集成度越来越高，第一代Al互连材料由于较差的抗电迁移能力，已不能满足高性能互连材料的要求。Cu比Al具有更低的电阻率、更好的抗电迁移能力，因此，Cu取代Al成为新一代互连材料。然而，Cu互连线在较低温度下会与半导体Si元器件发生互扩散而生成Cu-Si化合物，导致电阻急剧上升，这会严重影响Cu互连线的稳定性与可靠性。为了提高Cu互连线的热稳定性，本研究选择熔点较高且在Cu中溶解度较低的金属V和Ta作为阻挡层材料；同时，通过在Cu中掺杂电阻率较低的Al元素制备得到Cu-Al合金薄膜 ...
戴拖
core
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