查询词典 cathode particle

The results show that the particle size and porosity of cathode pellets are significant factors for three-phase interline during electrolysis process.

结果表明：阴极片的颗粒尺寸与孔隙率是影响有效三相界线的重要因素；孔隙率大和粒度小均有利于电解还原的进行，孔隙率小会导致阴极产物形成致密的金属钽外层，阻碍阴极进一步脱氧；成型压力4 MPa时1 150 ℃烧结2 h制备的阴极片具有合适的孔隙率和粒度，电化学活性良好，电解产物形貌均匀，氧含量低。

In order to research the influence to the deterioration of anode and cathode by the impaction of the moving electriferous particle in electric discharge channels and the insufficiency of the polarity effect theory, a series of systematic research is taken, which include monpulse EDM experiment, limited continuous pulse experiment and model analysis.

这不仅对完善电火花加工理论本身有着重要的意义，同时必将促进并有助于推动电火花加工工艺的发展和进步。

The invention discloses an electrochemical method for preparing a hydroxylapatite particle thin coating on the surface of a metal implant, which comprises the following steps: electrolyte is put into a container equipped with a constant temperature heating system and heated to be 30 DEG C to 95 DEG C, and then the temperature is kept; platinum is taken as the anode and evenly distributed around the container, and the metal implant is taken as the cathode, put in the middle of the container and totally soaked in the electrolyte; DC voltage of 2V to 4V is added between the anode and the cathode, the surface of the metal implant has cathode reduction reaction, the pH value is increased and the supersaturation degree of the hydroxylapatite is also increased, so as to crystalize on the surface of titanium; after 0.5h to 5h of deposition, a layer of hydroxylapatite particle thin coating which can be excellently adhered to the matrix metal is formed on the surface of the implant.

本发明公开了一种在金属植入体表面制备羟基磷灰石颗粒薄涂层的电化学方法，在装备了恒温加热系统的容器中装入电解液，并将电解液加热到30～95℃恒温；将铂作为阳极均匀分布在容器四周，金属植入体作为阴极置于容器中间，完全浸没在电解液中，两极之间加直流电压2～4V，金属植入体表面发生阴极还原反应，pH值升高，羟基磷灰石过饱和度增加，从而结晶在钛金属表面；经过0.5～5小时沉积后，在植入体表面即可形成一层与基体金属结合优良的、薄的羟基磷灰石颗粒薄涂层。

This article introduces some practical problems met in producing high-purity cathode copper , analyzes the reason of cathode copper surface particle formation by particle classification, and puts forward treatment measures and preventive measures to be taken.

介绍了高纯阴极铜生产中易遇到的实际问题，并把电铜表面粒子分成几种类型分析了其粒子形成的原因，提出了处理及应采取的预防措施。

However,the agglomeration in the particle sizes of cathode catalyst after 2000 h lifetime test at 3.2 MPa was less severe than that without optimal assembly force control.

但在非最佳锁紧力作用下，阴极催化剂的团聚作用远大于阳极催化剂。

The results show that LSCF and LSM precursors can be transformed to the pure orthorhombic perovskite structure having been calcined at 900℃ and 1200℃ for 5 h, respectively, and LSCF cathode has a smaller particle size and a bigger specific surface area compared with LSM cathode.

采用氨水沉淀法分别制备La0.6Sr0.4Co0.2Fe0.8O(下标 3-δ)与La0.8Sr0.2MnO(下标 3-δ)两种阴极材料，并用X射线衍射、场发射扫描电子显微镜和比表面积对所制备材料的结构、晶粒大小、形貌及比表面积进行表征。

The composite electroforming process of preparing nanometer alumina particle reinforced copper base composite material has phosphor copper plate as anode material, stainless steel sheet as cathode deposition body, nanometer level alumina particle as reinforcing particle, and fluorocarbide surfactant or formamide as co-deposition promoter.

一种纳米氧化铝颗粒增强铜基复合材料的复合电铸制备方法，用金属磷铜板作阳极材料，不锈钢片作为阴极沉积体，增强颗粒为纳米级氧化铝颗粒，采用氟碳阳离子表面活性剂或甲酰胺为共沉积促进剂。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。