【摘 要】
：
Multiphase Fe/N nanoparticles were synthesized by means of chemical vapor reaction, the influence of the preparing parameters on the properties of particles was
【机 构】
：
Department of Material Science and Engineering, Harbin Engineering University, Harbin 150001, China
论文部分内容阅读
Multiphase Fe/N nanoparticles were synthesized by means of chemical vapor reaction, the influence of the preparing parameters on the properties of particles was studied carefully during the first nitriding process. The optimum process was determined. Single phaseγ-Fe4N was prepared by twice-nitriding. Multiphase iron-nitride really transformsγ-Fe4N nanoparticle of single-phase and uniform. Moreover, the mechanism of nanoparticle nucleation and growth, including phase-transformation, was revealed. In addition, the mircograph, particle size, physical phases, schemical constituents and magnetic properties before and after phase-transformation were characterized initially.
其他文献
Certificate Authority (CA) is the core of public key infrastructure. However, the traditional structure of CA is either hierarchical or reticular, and none of t
Methods of arc length control and visual image based weld detection for precision pulse TIG welding were investigated. With a particular all-hardware circuit, a
A novel product code iterative decoding algorithm and its high speed implementation scheme are proposed in this paper. Based on partial combination of selected
Mechanical joints can have significant effects on the dynamics of assembled structures. However, the lack of efficacious predictive dynamic models for joints hi
目的探讨股骨髁上交锁髓内钉加稳定螺母治疗股骨髁间粉碎骨折的优势.方法本组18例股骨髁间粉碎骨折的病例,按AO分类,C1型2例,C2型10例,C3型6例,均采用股骨髁上交锁髓内钉加稳
Task decomposition is a kind of powerful technique increasingly being used within industry as a pathway for achieving products developing success. In this paper
A new rigid-plastic/rigid-viscoplastic (RP/RVP) FEM based on linear programming (LP) for plane-strain metal forming simulation is proposed. Compared with the tr
The coexistence theory of slag structure and its application to calculation of the oxidizing capabilities of slag melts is described. It is shown that the law o
Several languages use the Arabic alphabets and arabic scripts present challenges because the letter shape is context sensitive. For the past three decades, ther
复方苦荞麦合剂是治疗糖尿病肾病的经验方,临床疗效确切,为探讨其作用机理,笔者运用了生化学、组织学等实验方法,以模型组和消渴丸组作对照,系统观察了复方苦荞麦合剂对糖尿