Materials Literature
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A novel aluminum alloy surface pretreatment process with fluoride-free and ammonium-free formula was developed. Through the two-step process of pretreatment etching-neutralizing, the aluminum alloy surface was smooth and had excellent sand finishing, the aluminum consumption was less than 2.0%. The sand finishing perf…
A method of using thermoelectric cooler as temperature control component was developed for the temperature control adjustment on an open-cathode proton exchange membrane fuel cell(PEMFC). A study on the temperature control was conducted to verify the feasibility of the method through analyzing the dynamic response cha…
The numerical modeling of grain drying is a topic of great relevance to post-harvest engineering. The required type of drying process depends on the quantity of grain to be dried and the required quality of the grain. The choice of the drying system depends on the operating parameters of the drying process.The granula…
Yb3+/Tm3+ co-doped and Yb3+/Ho3+/Tm3+ tri-doped tellurite glasses were synthesized by fusing the mixture of TeO2, PbF2, AlF3, BaF2, Yb2O3, Tm2O3 and Ho2O3 in a corundum crucible at 850 oC for 20 min. The synthesized glasses were characterized by upconversion emission spectra under the excitation of 980 nm laser, and t…
Perfluorinated alkyl silicone oil(PFASO) was successfully synthesized from N-ethyl-Nhydroxylethyl perfluorinated octane sulfonamide, succinic anhydride and amino silicone oil by esterification and amide reaction at moderate temperature in the presence of different catalysts. The chemical structure of the synthesized s…
cationic perylene diimide (PDI ) 和 anionic 自己组装胆固醇衍生物(CHOL ) 被静电的吸引力方便地完成并且叠相互作用，展出从几百纳米到微米尺寸的明确的超分子的 nanofibers。
声学的排放(AE ) 监视了张力的测试在受到不同的热处理的 35CrMnSiA 钢上被执行。结果显示出那熄灭并且划分(Q-P ) 热处理为商业 35CrMnSiA 钢提高了高力量和高韧性的联合机械性质，作为与象熄灭和 tempering (Q-T ) 和 austempering 那样的传统的热处理相比(在) 。有高振幅和高精力的 AE 信号在微观结构与保留的奥氏体(RA ) 在 35CrMnSiA 钢的张力的变丑期间被生产(经由 Q-P 并且在热处理获得了) 由于 austenite-to-martensite 阶段转变。而且，另外的 AE 信号不再出现，一旦 RA 为 Q-P 由 tempering 堕落了，机械性质将堕落到底…
Silver-based catalysts have been exten sively investigated as the platinum substituted catalysts due to their high catalytic efficiency,low cost and long-term durability.In this study,the surfactant-free silver nanoparticles supported on graphene quantum dots were synthesized through a facile approach without addition…
The effect of Zn addition on the composition of oxide films formed on 304 austenitic stainless steels was studied in high-temperature and high-pressured waters aiming to simulate the primary water of pressurized water reactor(PWR). After exposed in waters with 60 and 120 μg/kg Zn respectively at 320 ℃ for 600 h, the f…
3 -g-C 3 N 4 合成光催化剂被介绍聚合 g-C 综合 3 N 4 。合成光催化剂被 X 光检查衍射(XRD ) 描绘，高分辨率的传播电子显微镜学(HRTEM ) ， Fourier 变换红外线(英尺红外) 光谱学，紫外力的弥漫的思考光谱学，光致发光(PL ) 光谱学和赌注出现区域大小。新奇合成光催化剂的 photocatalytic 氧化能力作为一种目标污染物质用甲基橘子(瞬间) 被评估。光催化剂在降级的瞬间展出了显著地提高的 photocatalytic 表演。最佳的 g-C 3 N 为合成光催化剂的 photodegradation 活动的 4 内容被决定。同样准备的合成光催化剂在接口由于产生相片的电子洞分离的改进展…
Thermogravimetric study of medical transfusion tube(MTT) waste containing polyvinyl chloride(PVC) was carried out using the thermogravimetric analyser(TGA) with N2, at different heating rates of 5, 10, 20, 30, 50 °C/min. The purpose is to obtain pyrolysis characteristics and kinetic parameters of medical waste. The ex…
The Cu 2 ZnSnS4(CZTS) nanocrystallites were synthesized by hot injection method with starting materials of copper(II) acetylacetonate [Cu(AcAc)2 ], zinc acetate [Zn(CH3 COO)2 ·2H2 O], tin(II) chloride dehydrate [SnCl2 ·2H2 O], elemental sulfur(S) and dodecanethiol. Then CZTS thin films were prepared by spin coating me…
TiO2 nanocrystals/graphene (TiO2/GR ) 合成被作为先锋联合絮凝和热水的减小技术使用石墨氧化物和 TiO2 胶体准备。获得的材料被扫描电子显微镜学，转变电子显微镜学， X 光检查衍射， N2 吸附解吸附作用，和紫外可见的弥漫的光谱学检验。结果建议有大约 15 nm 的直径的 TiO2 nanocrystals 的存在阻止 GR nanosheets 凝块。由于 GR nanosheets 上的 TiO2 nanocrystals 的一致分发， TiO2/GR 合成展览在可见区域，到甲又蓝色的更高的吸附能力和与纯 TiO2 相比的费用分离和交通的更高的效率的更强壮的轻吸收。而且，与 30% 的一个…
Chalcogenide glass microspheres were fabricated by high temperature melting floating glass powder method. The glass composition was 0. 9% Er2S3(mass fraction) ∶ 75%GeS2-15% Ga2S3-10% CsI(mole fraction). A quartz fiber taper with a 2. 31 μm waist diameter was drew at fuse and used to couple a 119 μm diameter chalcogeni…
有与很多个 nano 薄片装配的象花的结构的二种镍粒子被综合，他们吸收性质的形态学和微波的关系被学习。这些象花的 Ni 的电磁的参数在 218 GHz 频率与向量网络分析器被测量，有不同样品厚度的思考损失(RL ) 是计算的。结果显示有样品厚度的象花的镍蜡 composites 不到 2 公里表演优秀吸收能力。这结果被期望在高度有效的吸收器的准备起一个指导作用。
Continuous SiC fiber reinforced SiC matrix(SiCf/SiC) composites has high strength and stability at high temperature and are the most attractive candidate materials for space-used lightweight components,first wall and blanket components in fusion reactor.SiCf/ SiC composites made with indigenous SiC fibre run short of…
Cationic grafted particles with a brush structure were prepared with micron-sized silica gel particles as a matrix via graft-polymerization and macromolecular reaction. The adsorption ability, adsorption mechanism,and adsorption thermodynamics of bovine serum albumin(BSA) on the particles were investigated in depth.Th…
Supercapacitor is a kind of energy storage devices which storage energy by the electrochemical double-layer or the redox reactions at or beyond the surface of the electrode. They have many advantages, such as high power density and long life cycles. It prospects broad applications. In this review, we give an introduct…
With the characteristic size reducing as well as the power densities exponentially increasing, elevated chip temperatures are true limiters to the performance and reliability of integrated circuits. To address these thermal issues, it is essential to use a set of on-chip thermal sensors to monitor temperatures during…
新奇 recyclable 免费 –ONNO–tetradentate Schiff 基础 ligand N， N'-bis (2-hydroxy-3-methoxybenzaldehyde ) 4-methylbenzene-1,2-diamine (3-MOBdMBn ) 被综合。有锌(3-MOBdMBn-Zn ) 的这 ligand 的 Complexation 被执行，并且建筑群的催化活动被评估。这建筑群(P-3-MOBdMBn-Zn ) 的支持聚合物的类似物被综合，并且它的催化活动被学习。这些免费、抛锚聚合物的锌建筑群被金属答案的反应在氮下面在甲醇与未支持的 3-MOBdMBn 或 P-3-MOBdMBn 的一臼齿的等价…