Results 21 to 30 of about 9,749 (141)
ABSTRACT Sodium metal batteries hold significant promise for large‐scale energy storage due to the high theoretical capacity and abundant sodium sources, yet sodium‐metal anodes are hindered by dendrite propagation, unstable solid electrolyte interphase, and poor cycling efficiency arising from uneven Na deposition and volume changes.
Nan Xing +7 more
wiley +1 more source
Mechanical Properties of Sandstone after High Temperature [PDF]
In this study, we conducted a number of mechanical experiments on sandstone samples from Junan County, Linyi City, in order to investigate the mechanical properties of the sandstone samples after being subjected to high temperatures, ranging from 25 ℃ to
Geng, Jishi +3 more
core
Analysis of dynamic splitting tensile failure and energy evolution characteristics of Jinping marble [PDF]
Splitting tensile failure is one of the main forms of instability failure of tunnel surrounding rock. At present, the mechanisms of rock crack propagation and energy evolution at the corresponding stages under dynamic splitting conditions have been ...
Fengchen MIAO +4 more
core +1 more source
ABSTRACT This study demonstrates a new strategy for modifying the boron content to address stress‐relief cracking (SRC) in the 7CrMoVTiB10.10 alloy. First, coarse‐grained heat‐affected zone (CGHAZ) specimens with different boron contents were prepared via simulated welding thermal cycles.
Dongdong Zhang +3 more
wiley +1 more source
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
通过菊芋干片与菊粉提取液的制备、菊粉酶解、精制生产高果糖浆,菊粉酶解的适宜条件为:底物糖浓度12%,加酶量26u/g糖,PH5.0-5.5,最适温度为50℃,酶解6H,底物降解率可达98.5%。菊粉酶解液经活性炭脱色、离子交换树脂处理、减压浓缩等步骤,制得糖浆的固形物含量为73.8%,果糖含量(占固形物)为83.6%,同时对糖浆的dE值、色度、灰分 ...
刘月英 +8 more
core
ABSTRACT Bismuth anode materials are considered promising anode candidates for sodium–ion batteries (SIBs) due to their high theoretical capacity and appropriate working potential. Nevertheless, the significant volume expansion that occurs during the cycling process restricts its broader application in sodium–ion storage. Herein, Bi/Bi2O3 nanoparticles
Jiaju Lu +3 more
wiley +1 more source
利用基团转移聚合(GTP)技术,在室温厂使用单官能团引发剂,通过对单体加科顺序与时机的控制.合成了一系列不同组成比、不同分子量的聚甲基丙烯酸甲酯-聚丙烯酸正了酯(或乙酯)-聚丙烯腈嵌段共聚物用FT—IR,1H—NMR,GPC等方法对共聚物进行表征 ...
丁马太 +4 more
core
Experimental study on unloading creep of sandstone under temperature-seepage coupling conditions [PDF]
Environmental factors (such as temperature and water) and their coupling effects will change the unloading creep properties of surrounding rock after tunnel excavation, threatening the stability of surrounding rock and the safety maintenance of ...
Gongyu HOU +7 more
core +1 more source
ABSTRACT In this study, a newly developed seeded electromagnetic confinement directional solidification (EMCDS) technique was employed to fabricate large‐scale TiAl single crystal ingots with a diameter of 32 mm, overcoming the long‐standing size limitations that have hindered their industrial application.
Wei Wang +9 more
wiley +1 more source

