Results 21 to 30 of about 1,086,884 (143)
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Conductive hydrogels show great potential in flexible electronics and biomedical devices, yet their practical applications are often hindered by insufficient mechanical strength, poor environmental stability, and limited functionality. To address these challenges, this study has developed a hydrogel platform that integrates diagnosis and ...
Wei Jiang +9 more
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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
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Ultrathin sodium (Na) metal anodes (< 40 μm) with superior electrochemical performance are essential in developing high‐energy‐density sodium metal batteries (SMBs). Nonetheless, Metallic Na's poor processability hinders its practical application.
Hao Yao +6 more
wiley +1 more source
Dianci bileiqi, 2018 复合绝缘子机械性能对电网安全运行至关重要。本文报道了广东地区、东北地区共计76支运行复合绝缘子3种金具连接方式的机械性能情况,结合试验结果阐述了3种主要端部连接方式下复合绝缘子的破坏形式及机械强度,对早期运行复合绝缘子的机械性能进行评价,结果表明:抽检复合绝缘子的芯棒表面有不同程度的裂痕;不同端部连接形式的复合绝缘子,其主要破坏形式不同,内楔式主要破坏形式是球头拉断、芯棒拉断和芯棒损坏,对应所占比例为44%、44%和12%,外楔式主要破坏形式是芯棒拉断、球头拉断、芯棒拉脱和芯棒损坏,对应所占比例为45%、
王康 +5 more
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The regeneration of osteoporotic bone defects is severely hampered by compromised endogenous healing capacity, demanding advanced strategies that actively orchestrate pro‐osteogenic microenvironments. Here, we report an integrated, self‐powered osteo‐regenerative system that uniquely leverages a dual ultrasound‐responsive piezoelectric ...
Bing Tan +6 more
wiley +1 more source
Dianci bileiqi, 2009 为了研究架空输电线路绝缘子串、导线和金具的机械振动疲劳性能,参照绝缘子串振动试验方法,采用D-300-2型振动台和KD-3正弦振动控制仪,开发和建立了一套满足试验要求的绝缘子串振动试验系统,并在国内首次对盘形悬式瓷和玻璃绝缘子串以及棒形悬式复合绝缘子进行了大量机械振动试验研究。结果表明,悬垂串试验对绝缘子强度基本无影响,耐张串试验对绝缘子强度影响较大。瓷绝缘子耐张串试验后,机械强度相对有不同程度的降低（约15%）,玻璃绝缘子耐张串试验后机械强度变化较小。压接式复合绝缘子经3 000万次的振动试验后 ...
张锐 +4 more
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Gaoya dianqi, 2020 为提高材料耐电痕性能,研究环氧绝缘材料电气及机械性能对电痕特性的影响,建立环氧绝缘材料电气、机械性能与电痕破坏的关系,文中制备3种掺杂不同含量微米二氧化硅（SiO2）的环氧树脂复合材料,按IEC 60587—1984试验规程进行电痕试验并测试环氧树脂表面接触角,体积电阻率等电气性能及冲击强度等机械性能。结果表明:随着微米掺杂含量提高,环氧材料耐电痕特性变差,体积电阻率及弯曲强度先减小后增大,表面电阻率先增大后减小,介电强度减小,冲击强度及拉伸强度增大 ...
杨玲 +6 more
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The limited crack resistance of coarse grain boundaries and coarse interfaces leads to an incompatibility between high‐temperature strength and ductility in TiAl alloys. Tailoring stress‐oriented textures and multiscale heterogeneous interfaces can effectively impede crack propagation, thereby overcoming this trade‐off.
Kexuan Li +7 more
wiley +1 more source
Dianci bileiqi, 2022 影响空心复合绝缘子机械强度的因素除了材料本身应力和管壁厚外,胶装结构的设计尤为重要。通过对固定胶装比下,不同胶装间隙的产品,以及对固定间隙下,不同胶装比的产品的机械性能研究,确定了合理的胶装间隙,适宜的胶装比,获取空心复合绝缘子理想的弯曲强度,从而指导产品设计,满足产品机械性能要求的同时,使设计成本最小化,提高产品性价比。
李婷, 银樵
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