Three groups of AlSiTiCrNiCu high entropy alloy (HEA) particles reinforced Al606l composites were fabricated by spark plasma sintering at 520 and 570 ℃ (S520, S570) and by hot-pressed sintering at 570 ℃(H570). The AlSiTiCrNiCu (AST) particles used as rein
We used different SiC particle size as raw materials and via reaction bonding technique to prepare porous SiC membrane supports. The phase composition, microstructure, bending strength, open porosity, and pore size distribution were investigated as a func
Highly monodisperse carbon quantum dots (CQDs) were synthesized by a solvothermal method using L-ascorbic acid as carbon source and different simple alcohols (methanol, ethanol, ethylene glycol, and isopropanol) as reaction solvents at 180 ℃ for 4 hours.
能源结构转型既要适应能源绿色低碳转型的要求,也需满足生态文明建设,它是维护全人类共同利益的必然选择.新时期,我国能源结构转型和能源安全进入稳步前行的阶段,可再生能源发展也进入大规模、高比例、市场化和高质量发展的新阶段.在能源发展方面,我们要立足已有的优势,提高能源安全的保护,实现能源结构的合理布局,这些实施的前提是需要有全方位的支持和保障;再者是财税政策,它可以从中发挥激励的作用.在促进能源结构顺利转型和维护能源安全方面,世界各国尤其是经济发达国家拥有相对成熟的财税政策,其根本是将政策作为支持与激励的手段
To solve the problem of the low added value Zn-containing rotary hearth furnace (RHF) dust, two deep eutectic solvents (DESs) were employed, such as choline chloride-urea (ChCl-urea) and choline chloride–oxalic acid dihydrate (CC–OA) solvent and Zn-contai
The electronic structure and optical property of stacked GaN-WS2 heterostructure are explored with HSE06 calculation based on density functional theory. The direct band gap of GaN-WS2 heterostructure is 1.993 eV, which is obviously a type-Ⅱ band alignment
Highly stable and permeable silicone emulsions were prepared by encapsulating N-octyl triethoaysilane microdroplets into micelles of NH2-PDMS/SiO2. The conversion of siloxane to sub-1 μm emulsions, on one hand, endows the concrete with a highly hydrophobi
The waste coffee-grounds carbon (WCGC) was prepared with H3PO4 treated using waste coffee-grounds as precursor. Its adsorption ability was studied using phenol as test molecule. The influence of H3PO4 treated, calcined temperature, the initial phenol conc
To solve the problem of the poor plasticity and to meet the requirements of high temperature for forming titanium alloy, mechanical properties of TC2 titanium alloy under the compound energy-field (CEF) with temperature and ultrasonic vibration were studi
Graphene-modified asphalt (GMA) for road application was prepared via using metal-free phthalocyanine-dispersed to modify an SK-70# base asphalt with graphene. The preparation parameters are as follows: the content of graphene is 0.26% based on the mass p