Zeng Hanmin, Zhang Zhiyi. Studies on the Micro-structure of the Interfacial Layer in CF/PEEK[J]. Journal of Materials Engineering, 1992, 0(6): 4-6.
In this paper, the micro-structure of the transcrystallinity of polyetheretherketone (PEEK)around carbon fiber has been studied. Crystal growth unhinderedly only in the direction normal to fiber axis due to the very high nucleation density on the fiber is the reason that transcrystallinity can be formed. In PEEK transcrystallinity, the lamellae whose structure are identical to those in the around sphemlites are stacked orientedly perpendicular to the fiber axis. And the oriented lamellae will lead to the particular optical properties of the transcrystallinity.
Li Peilan, Chen Hongjun, Zhang Yunjin, Liu Baofeng, Ge Shigen, Zhang Fengfan. Manufacture of the prepregs used on the helicopter "Z-9"[J]. Journal of Materials Engineering, 1992, 0(6): 7-10.
This article puts emphasis on the manufacture of the fabric prepregs by solution method, and the factors of effect on the resin content, the volatile content and the appearance etc and the quality control methods, which should accord with the concern standards and meet the requirements of the prepregs used on the helicopter "Z-9".
Ding Wenjiang, Yu Ziazhang, Xu Xiaoping, Deng Zuwei. A Study on Cast Aluminium Matrix Composite Reinforced with SiC Particles[J]. Journal of Materials Engineering, 1992, 0(6): 11-14.
After treated with vaccum-baking and tank-sealing, SiC particles were put into the melt when its solid fraction was about 0.4 to 0.5. Through stirring and other processing, cast composite material was manufactured, and property tests of this material ware made. The results indicate that this material with a good casting ability, high mechanical properties and excellent wear resistence, is suitable for die-casting, plaster precision casting, and metal,mold casting to manufacture some severely worked products such as piston, link, and so on.
Xing Liying, Liu Junneng. The Study of Honeycomb Sandwich Microwave Absorbing Materials[J]. Journal of Materials Engineering, 1992, 0(6): 15-18.
The factors of effecting the absorbing properties of honeycomb sandwich, for example, the dip-coating resin system, the core cell size, thickness, the technology of dip-coating etc. were studied in this paper, some regularities were summarized and becoming the basis for further study.
Mao Qingzhu, Zhang Qing, Ding Heyang, Sun Dahai. The Development of A New Type of Corrosion Resistant Coating-Fluor or ubber Coating[J]. Journal of Materials Engineering, 1992, 0(6): 19-21.
The fluororubber coating based on fluororubber is characterized by excellent resistance to heat, oil and chemicals. This coating consists of fluorocarbon polymer, amine curing agent, couplant, acid absorber and solvents. The film can be cured at room temperature and used easily and widely.
Chen Hancun, Liu Zhengyi, Chen Huaping, chuang Yuchi. Effect of the Composition of ZrO2 Coationgs on Their Resistance to Hot Corrosion[J]. Journal of Materials Engineering, 1992, 0(6): 22-26.
Effect of the composition of plasma-sprayed ZrO2 coatings on their resistance to hot corrosion was studied. The hot corrosion process included that the molten salt on the coating surface penetrated into the pores and microcracks of coating; and that the corrosive atmosphere from decomposition of the molten salt diffused into the coating. Doping with 2.8% SiO2 considerably increased the resistance of ZrO2 coating to hot Corrosion. ZrO2 coating stabilized with Y2O3 was more stable than that with CaO under the same hot corrosion condition because the reaction of CaO with the molten salt took place and caused a change of phase from tetragon to monocline of ZrO2 coating. Therefore the resistance of CaO-stabilized ZrO2 coating to hot corrosion was relatively low.
. Superplastic-Isothermal Forging of Superalloy Powder Turbine Disk[J]. Journal of Materials Engineering, 1992, 0(6): 27-28,14.
This paper gives a differential equation of work deformation, and equation of pouring oil rate and its dispersing treatment for the superplastic-isothermal forging. In addition, it demonstrates reformation feasibility of the type 3150 hydraulic press machine and its hydraulic system principle sketch, and controlling ways.
Qian Xinyuan. The Ultrasonic Inspection of Titanium Alloy[J]. Journal of Materials Engineering, 1992, 0(6): 29-32.
On the basis of plenty of research and practical experience, the author points out that discontinuities and non uniformities of metallurgical structure, some of which are unanticipated, often result in noise signals while ultrasonic inspection is performed and that those signals should be treated prudently.
Liu Changming. Several Specific Methods for Spectrum Analysis[J]. Journal of Materials Engineering, 1992, 0(6): 33-35.
The paper introduces some spectrum analysis methods for spares and sample (worn metals)using themedium-sized spectrograph under specific conditions, while the new engine being mapped and manufactured. Test instances are given to prove that the methods are not only handy and exact, but also practical.
Shen Rongying. The Effect of Factors on Measured Results of Thermal Conductivity[J]. Journal of Materials Engineering, 1992, 0(6): 39-41.
The factors, such as the thickness, flatness, parallelism of specimen, temperature, humidity and heat conducting medium, which take effeet on measured results of thermal conductivity, have been studied.
Li Dejun. Applications of New Materials on Aircraft Engines[J]. Journal of Materials Engineering, 1992, 0(6): 46-48.
This paper mainly describes development of various of new types of materials and their applications on aircraft engines. The paper also introduces rapid development of advanced materials, especially metal matrix composites, ceramic matrix composites ant their newest applications on aero-engines.
