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- The invention relates to a manufacturing method of a titanium nitride layer as well as an apparatus thereof. 本发明涉及一种氮化钛层的制造方法及其装置。
- The nitride layer was formed on the surface of ductile cast iron by gas multi-element penetration, and the phase structure and section appearance of nitride layer were analyzed by the XRD and SEM. 球墨铸铁经过气体多元共渗后可在其表面形成氮化层,通过X射线衍射和扫描电镜对渗层的相结构与形貌进行分析。
- Microstructure Analysis of Powder Sintering Nitride Layer 粉末烧结钢氮化层微观结构分析
- CMOS Devices Isolated by an Implanted Silicon Nitride Layer 离子注入氮化硅隔离的CMOS器件
- The result shows that the porosity of nitrided layer is due to the over concentration of CNO- in the salt bath. 试验结果表明，渗层疏松主要是由于盐浴内CNO－浓度过高所致；
- Keywords sdt bath nitrocarburizing;nitride layer loose layer; 盐浴氮碳共渗;化合物层;疏松层;
- This paper deals with the kinetics of the ion nitrided layer growth for armco iron, steels 45, 40Cr, 42CrMo and 38CrMoAl. 本文研究了在不同离子渗氮工艺参数下,纯铁、45钢、40Cr、42CrMo及38CrMoAl钢等五种材料的离子渗氮层长大动力学,建立了长大动力学的数学模式。
- The fracture failure would occur in nodular iron crankshafts due to the over-shallow and non-uniform thickness of nitriding layer. 球铁曲轴常常由于渗氮层薄、质量不稳定而引起断裂失效,本课题研究了球铁曲轴加氧渗氮工艺。
- Reducing discharge interval and increasing electric field intensity could increase the hardness and depth of nitriding layer markedly. 在本工艺条件下，适当减小放电间隙，增大电场强度，可以明显提高渗层的硬度和深度。
- The results of experiments showed that the Nb can raise the depth of diffusion zone,hardness,wear resistance,strength and toughness of the nitriding layer of the matrix steel. 实验结果表明，铌能增加扩散层深度、硬度及耐磨性，提高渗层的强韧性。
- Recent progress is presented regarding the research of structure, process, property, failure and strengthening mechanism of the composite "nitrided layer PVD coating". 摘要介绍了“渗氮／物理气相沉积(PVD)”复合涂层在涂层结构设计、工艺与性能、失效与强化机制等方面研究的最新进展。
- It is proposed that cooling ways greatly influence the hardness of nitrided layer,and the content of CNO - within the range of fluctuation has little effect. 发现盐浴渗氮层的硬度受冷却方式的影响很大 ,而CNO-浓度在一定范围变化则影响很小 ,钒的渗入有利于改善渗层硬度。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- This paper has investigated the influence of alloying element Nb on structure and properties of the soft nitriding layer by means of experiments of the matrix steels containing Nb and Nbfree. 通过含铌与不含铌基体钢气体软氮化工艺对比实验，初步探索了合金元素铌对基体钢软氮化渗层组织与性能的影响。
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- The nitride on oxide layers remains intact. 氧化物表层上面的氮化物保持原状不动。
- The middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
- Comparative study on nitride and phosphide . 因此，较大的还原气空速易于形成较高的催化剂比表面积。
- The hardness gradient, depth , microstructure and phases of nitrided layers were measured with Microhardness Apparatus, Microcopy and X-ray diffractometer . 利用显微硬度计、金相显微镜和X射线衍射仪测定了渗氮层的硬度梯度、层深、显微组织和相组成。
