乙酰基吡啶是一种重要的希夫碱前驱体。
Acetyl-pyridine is an important precursor for the synthesis of Schiff-Base ligands.
应用DSC分析了凝胶前驱体的热处理过程;
The thermal decomposition for the gel precursor was investigated by differential scanning calorimeter (DSC).
并且随前驱体中反应物浓度增大,晶粒粒径减小。
With the increasing of the concentration, the particle diameter decreased.
采用尿素均相沉淀法制得了均分散的氧化亚镍前驱体粒子。
Monodispersed NiO precursor particles were prepared by homogeneous precipitation from nickel nitrate solution in the presence of urea.
介绍了几种炭 /炭复合材料的基体前驱体的性质及制备方法。
Several preparation methods of carbon/carbon composite matrix precursors and their characteristics are introduced.
研究了压力对USY催化剂催化甲苯裂解结焦及其前驱体的影响。
The effect of pressure on coke and its precursor's formation was studied during catalytic cracking of toluene over USY catalyst.
结果表明,前驱体合成工艺能够在合成过程中避免焦绿石相的生成。
The experiment shows that, the pyrochlore phase can be rid of by the precursor synthesis.
采用不同升温速率的差热分析研究空气气氛中锰酸锂前驱体分解的反应。
The decomposition kinetics of lithium manganese oxides precursor in air atmosphere was investigated at different heating rates with differential temperature analyses.
采用前驱体微球法制备闭孔聚酰亚胺泡沫,并对其吸声性能进行了研究。
The closed cell polyimide foams were fabricated by foaming the precursor balloons, and the foams' acoustic absorption properties were tested.
根据热力学分析结果,设计了快速并流沉淀工艺合成铁酸锌前驱体粒子。
The double-jet precipitation process was proposed based on the results of thermodynamic analyses.
介绍了作为碳纤维前驱体的聚酰亚胺(PI)纤维的组成、分子结构和特性;
The composition, the molecular and the characteristics of polyimide (PI) fiber as a precursor of carbon fibers were introduced.
结果表明,合成的前驱体为一种有机硅化合物,其干燥、煅烧后的产物为堇青石。
The results show that the synthesized precursor is an organosilicon compound and its dried and roasted product is cordierite.
实验结果表明,硝酸锆比氧氯化锆更适合作前驱体,可获得均匀分布的稳定溶胶;
The zirconium nitrate is more suitable to be used as the precursor than zirconium oxychloride to get stable zirconyl oxalate sol with uniform particles.
探讨新的合成工艺中各反应条件的影响机理,主要研究了合成条件对前驱体的控制。
Researching the influence mechanism of every response condition in the new synthetic technology, mainly research the control and controllable conditions on the precursor .
研究了前驱体浓度、PEG2000加入量及不同水浴温度对薄膜结构和性能的影响。
The effects of precursor concentration, PEG2000 content and water bath temperature on the characteristics of films were studied.
聚酰亚胺是一类高性能的聚合物,它可由其前驱体聚酰胺酸经热或化学亚胺化而得到。
Polyimides are important high-performance polymers which can be made by thermal imidization and by chemical imidization of their precursors poly(amic acids).
采用溶胶-凝胶法制备了负载型氮化钼的前驱体,采用流化氮化新工艺制备了氮化钼。
This article took the sol-gel method to prepare the precursor of supported molybdenum nitride, used the fluid nitriding new technology.
采用正交试验法,分析了前驱体球状银粉的制备及球磨工艺对最终片状银粉性能的影响。
Applying orthogonal experiment method, the influence of processes of ball silver powder precursor and ball milling on the properties of final flake silver powder were analyzed.
本文采用凝胶前驱体纤维热分解还原法制备了镍、镍-钴、铁、镍-铁四种磁性金属纤维。
In this paper, the Ni, Ni-Co, Fe and Ni-Fe magnetic fibers were prepared by thermal decomposition reducing method of gel precursor fibers.
采用硝酸钴、硝酸锶及尿素为原料,通过溶胶-水热合成方法制备出掺锶钴氧化物前驱体。
By using cobalt nitrate, strontium nitrate and urea as initiative materials, the precursor of cobalt oxide was prepared by Sol-hydrothermal synthesis.
在混合溶剂中热解金属有机前驱体是制备尺寸可控、高度晶化的纳米材料的一个有效的方法。
The thermolysis of organometallic precursors in combined solvents is one of the most effective methods for preparing highly crystalline and size-controlled nanocrystals.
这样不仅仅得到的水蒸气,但是你会得到一些氮氧化物,或者如大家所知到的nox,这是烟雾的前驱体。
And so, you make not only water vapor, nox but you make some nitrous oxides, nox, or nox as it is known, and this is the precursor to smog.
以硝酸铝为原料,碳酸铵为沉淀剂,合成前驱体碳酸铝铵,然后煅烧得到纳米级氧化铝粉体。
Ultrafine alumina powders were prepared by pyrolysis of the aluminium precursor powders obtained by precipitation method using aluminium nitrate and ammonium carbonate as raw materials.
研究了配料组成和前驱体成型压力对多孔碳板的气体透过性能、孔隙率、和电导率等指标影响。
The effects of composition and pressure of its precursor on the properties, such as gas permeability, porosity, and electric resistivity, were studied.
分析了纳米颗粒前驱体的大小、盐介质的选取、热处理温度等因素对纳米颗粒固相生长的影响。
The influence of salt medium, annealing temperature and the critical size of nanoparticles on growth process was analyzed in detail.
通过X射线衍射分析,研究了机械激活处理过程中反应前驱体的粒径变化、相成分变化的规律。
The characteristic changes of particle sizes and phases in the process of mechanical activation were investigated through XRD analysis.
本文研究了以液相沉淀法合成前驱体,然后对前驱体进行热分解还原得到棒状超细铁粉的方法。
This thesis carries on the study of preparing claviform ultra-fine iron powder by liquid precipitation-thermal reduction.
本文研究了以液相沉淀法合成前驱体,然后对前驱体进行热分解还原得到棒状超细铁粉的方法。
This thesis carries on the study of preparing claviform ultra-fine iron powder by liquid precipitation-thermal reduction.
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