Results 21 to 30 of about 1,241,075 (150)
介绍了采用溶胶一凝胶工艺制各技术陶瓷压制粉的工艺过程和原理,以及制备工艺参数对陶瓷结果和性能的影响。采用此工艺可获得特定性能、成分、颗粒度和形状的压制粉,为制备高机械、物理性能的技术陶瓷奠定了基础。
范恩荣
doaj
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
ABSTRACT In laser‐directed energy deposition (LDED) of TiC/Ti6Al4V composites, a low content of micron‐sized TiC provides a good strengthening effect on hardness and strength, but the improvement in plasticity remains a challenge. By introducing synchronous ultrasonic impact treatment (UIT) into the LDED process, an ultrasonic‐assisted LDED (UA‐LDED ...
Yuzhou Zeng +9 more
wiley +1 more source
ABSTRACT An ultra‐high as‐deposited tensile strength of 1408 MPa—the highest reported value for laser‐directed energy deposition (L‐DED) fabricated Ti2AlNb alloy—is achieved in this study. The as‐deposited microstructure consists of coarse B2 grains with a high density of fine acicular O phase precipitates within the grains, along with a brittle α2 ...
Ximiao He +7 more
wiley +1 more source
b-轴取向MFI型分子筛膜是一种具有特殊纳米孔道结构的硅铝分子筛膜,在膜分离、膜反应器、化学传感器等领域有着广泛的应用前景,受到国内外学者的普遍关注。本文综述了b-轴取向MFI型分子筛膜制备工艺方面的研究进展,详细介绍了原位水热合成法和二次生长法制备工艺;重点总结和评价了近年来在载体表面修饰、b-轴取向分子筛晶种层制备和水热合成条件调控等方面的最新研究成果。在深入分析了各种取向分子筛膜制备方法优缺点的基础上,对b ...
吴创之, 阴秀丽, 郎林, 张超
core +5 more sources
ABSTRACT Ti‐15Mo‐2.5Ag alloy exhibited a low modulus and strong antibacterial ability but poor bioactivity. To resolve this problem, sandblasting and anodization were used to create a hydrophilic and nano‐Ag2O‐containing TiO2 coating. Subsequently, the microstructure and physicochemical properties were investigated by scanning electron microscopy, X ...
Yanchun Xie +11 more
wiley +1 more source
利用微生物氧化亚铁硫杆菌(T.f.)为催化剂,催化氧化Fe2+为Fe3+制备了聚合硫酸铁(PFS)。并研究了氧化亚铁硫杆菌制备聚合硫酸铁的最佳工艺条件,在最佳工艺条件下制备的聚合硫酸铁具有较好的絮凝效果和对城市污水较好的去浊率。该方法生产工艺简单、成本低、无污染、不残留有毒物质,具有良好的经济和环境效益。
姜国芳 +3 more
doaj +2 more sources

