微等离子体氧化技术制备陶瓷膜研究进展

微等离子体氧化技术是一种直接在有色金属表面原位生长陶瓷膜的新技术。用此技术制备的陶瓷膜具有优良的耐腐蚀、耐高温冲击、耐磨和电绝缘等特性。在此文中，介绍了微等离子体氧化技术的发展历史、陶瓷膜的特性及制备原理与工艺，指出微等离子体氧化技术是制备陶瓷膜的一种新工艺，并予以前景展望。     

钛酸锶压敏陶瓷及其性能影响因素

为了提高SrTi03压敏陶瓷的性能，对其影响性能的因素进行了论述，指出主要影响因素是配方体系及制造工艺中的绕结工艺，并指出改善SrTi03综合性能的途径是进一步提高瓷料配方的适应能力并完善制造工艺。     

高铝质陶瓷蓄热材料的研究开发

按蓄热式热交换器使用性能的要求和高铝质耐火材料的特殊性能和优点，选择适当的原料配方、特殊的成型和烧结工艺，研制开发出性能较为优越的陶瓷球蓄热材料。     

厚大型铸钢件防粘砂涂料的研制与应用

分析了厚大型铸钢件粘砂的机理，通过实验研究了可以替代铬铁矿砂的防渗透粘砂铸造涂料．实验表明，该涂料具有悬浮性高，刷感好，强度高的特点，不仅能起到防钢水渗透粘砂作用，提高铸件表面质量，而且由于取代了铬铁矿砂面砂工艺，简化了操作，降低了成本．     

Effect of temperature on microstructure ofmolybdenum diffusion coating on titanium substrate

The halide-activated pack cementation process was used to form molybdenum diffusion coating on titanium substrate. The morphology, structure, elements diffusion distribution and microhardness of the coatings formed at different diffusion temperatures were studied. The results indicate that the coating is made up of deposition layer and diffusion layer, and the surface roughness of specimens is increased after diffusion. In the diffusion layer, the major phases are Mo and β-Ti phase with addition of α′-Ti phase and α″-Ti phase. And the phase composition of Mo →β→α″→α′ is formed for different Mo contents in the diffusion layer from outside to inside. The diffusion of Ti element is very obvious as well as Mo element. With increasing the diffusion temperature, the thickness of diffusion layer is increased rapidly, and the microhardness is changed more smoothly with diffusion depth, which shows the same distribution rules as the Mo content.     

流延成型法制备三氧化二铝陶瓷膜基体(Ⅱ)——陶瓷膜基体的性能及结构表征

以苯丙乳胶液为粘接剂,水为分散介质,采用流延成型法制备了氧化铝陶瓷膜生坯体。通过对生坯体烧结后气孔率及断裂强度的测定,讨论了烧结温度及粘接剂含量对气孔率和断裂强度的影响。结果表明,随烧结温度的升高,基体的断裂强度增加,而气孔率有降低的趋势。在同一烧结温度下,随着粘结剂含量的增加,基体的气孔率增加,在添加了增稠剂羟乙基纤维素(HEC)后,气孔率进一步增加,但增加量不大,并且导致浆体粘度增加,不易流延成型。通过对不同烧结温度的基体的扫描电镜观察发现,氧化铝粒子分布比较均匀,随着温度的升高,晶粒明显长大,致密性提高,气孔率下降。     

ZrO2陶瓷表面化学镀镍

研究了ZrO2陶瓷化学镀镍特殊的前处理工艺．对还原剂的浓度、络合剂的种类及浓度、pH值以及温度等因素对镀速和镀层中的含磷量的影响进行了探讨，并对镀层的性能以及微观形貌和结构进行了分析。结果表明，在该文工艺条件下能在ZrO2陶瓷表面获得细致均匀、结合力和耐蚀性能良好的化学镀镍层。     

溅射涂层对炮钢氧化及热腐蚀行为研究

用磁控溅射的方法在炮钢CrNi3MoVA上沉积NiCrAIY涂层，研究了涂层前后抗氧化及热腐蚀的性能，结果表明，溅射NiCrAIY涂层的炮钢的抗氧化及热腐蚀性能显著提高．     

纳米等离子处理对提高牙科合金金瓷结合性的研究

为提高烤瓷材料与牙科合金之间的结合强度，采用Ar^ 离子轰击溅射清洁表面处理和等离子体刻蚀活化处理，并在牙科合金表面沉积纳米Al2O3膜，进行纳米表面处理。结果表明，通过处理的牙科合金与烤瓷的结合强度有所提高，当Al2O3膜厚约为1000nm时，抗折强度达到最大，为47．68MPa．与传统方法相比提高近70％，纳米膜的适宜厚度在700～1200nm之间。     

Characterization of tribo-layers on self-lubricating plasma-assisted chemical-vapor-deposited TiN coatings

Recently, several new solid lubricants and modern lubrication concepts have been developed to achieve lower friction and wear and thus longer lifetime in severe tribological applications. The aim of this study is to characterize tribo-layers formed during ball-on-disc testing on low-friction, Cl-containing TiN coatings deposited by plasma assisted chemical vapor deposition and to clarify their formation mechanism. Characterization of the transfer layers was done by optical microscopy, optical profilometry, Raman spectroscopy, Auger electron spectroscopy and X-ray photoelectron spectroscopy. Differential scanning calorimetry was used to provide information on the chlorine-influenced chemical reactions of the coatings in ambient air. Iron oxide layers of a thickness in the nm-range have been found on low-chlorine containing TiN coatings (<3 at.% Cl) showing friction coefficients of approximately 0.8, whereas on TiN coatings with higher chlorine contents (>3 at.% Cl) rutile layers were preferably formed, resulting in friction coefficients below 0.2. This self-lubrication mechanism can be explained by the in-situ formation of easy-shearable titanium oxides in the contact zone in the presence of humidity and oxygen.