搜索结果: 1-15 共查到“材料科学 iron”相关记录111条 . 查询时间(0.039 秒)
Facile preparation of bi-functional iron doped mesoporous materials and their application in the cycloaddition of CO2
Mesoporous material Cationic polymers Acid-base catalyst Cycloaddition reaction Cyclic carbonate
2023/6/19
Two kinds of bi-functional transition metal doped mesoporous materials (Fe-HMS and Fe-MCM-41) are prepared using one-step hydrothermal method and then treated with hydrochloric acid ethanol solution. ...
西安交通大学材料科学与工程学院工程材料基础英文课件Chapter4 CAST IRON
西安交通大学材料科学与工程学院 工程材料基础 英文 课件 Chapter4 CAST IRON
2017/3/7
西安交通大学材料科学与工程学院工程材料基础英文课件Chapter4 CAST IRON.
西安交通大学工程材料基础课件Chapter4 CAST IRON。
Dielectric and magnetic proper ties of BiFe1-4x/3TixO3 ceramics with iron vacancies:Experimental and first-principles studies
Ceramics Vacancies Ozone Iron group ions X-ray diffraction
2016/12/2
BiFe1-4x/3TixO3 (x = 0-0.2) ceramics with Fe vacancies created by nonstioichiometric compositions were synthesized to study their crystal structures, dielectric, and ferromagnetic behavior...
Microstructure and magnetorheological properties of the thermoplastic magnetorheological elastomer composites containing modified carbonyl iron particles and poly(styrene-b-ethylene-ethylenepropylene-b-styrene) matrix
Magnetorheological elastomers thermoplastic melt mixing titanate coupling agent the carbonyl iron particles microstructure
2015/3/30
Novel isotropic and anisotropic thermoplastic magnetorheological elastomers (MRE) were prepared by melt blending titanated coupling agent modified carbonyl iron (CI) particles with poly(styrene-b-ethy...
Synthesis of nanoparticeles in ductile iron with small additions of vanadium and niobium and its mechanical properties
Ductile iron Mechanical properties Nanoparticles Vanadium
2011/3/11
It has been shown that the heat treatment of 1095oC/640 oC type of ferritic ductile iron with small addition of 0.08% vanadium permits to obtain of the rounded VC nanoparticles with an average size of...
Influence of continuous casting conditions on grey cast iron structure
Casting Cast iron Graphite Electromagnetic field
2010/8/17
Forced convection of liquid metal in the traditional mould or in the continuous casting mould has a significant influence on the crystallization process of castings. For many years, the device whose m...
Yolk-like micro/nanoparticles with superparamagnetic iron oxide cores and hierarchical nickel silicate shells
Yolk - like nano and micro particles magnetic iron oxide the layered silicate nickel shells sol-gel process
2015/3/30
Yolk-like nano/microparticles with superparamagnetic iron oxide (SPIO) cores and hierarchical nickel silicate (NS) shells, designated yolk SPIO@NS, are fabricated by combining the versatile sol–gel pr...
Development of a new aluminium matrix composite reinforced with iron oxide (Fe3O4)
a new aluminium matrix composite iron oxide Fe3O4
2010/8/11
In modern industry, it is more and more enforced to develop new composites, such as high resistant, alternative materials of low density in order to realise multifunctional pieces. The powder metallur...
External pressure in the hardening of phosphate in tribofilm on iron surfaces
Antiwear additives Hardness External pressure Transition metals
2009/12/14
Purpose: In the present work we consider our (in progress) spectroscopy study of zinc and iron phosphates under the influence external high pressure to determine zinc ion change coordination from tetr...
Magnetorheological characterisation of carbonyl iron based suspension
Smart materials Magnetorheological materials Carbonyl iron
2009/12/14
Purpose: The main aim of this article was to present the investigation results of magnetorheological fluids (MR) composed of carbonyl iron (CI) particles and analyse their flow behaviour in terms of t...
Structural analysis of austempered ductile iron obtained by Mössbauer spectroscopy
Austempered ductile iron Mö ssbauer effect Microstructure Austenite
2009/12/2
Purpose: The composition of metallic matrix in ductile iron as-cast and after austempering at temperatures of
280, 330 and 380oC (ADI) was examined.
Design/methodology/approach: The study presents ...
State of the art of metal reoxidation study of iron castings
Metallic alloys Metal reoxidation Oxygen activity measurement
2009/12/1
Purpose: Metal reoxidation causes a number of iron castings defects, particularly when pouring them in greensand
moulds. One of them is pinholes the occurrence of which is explained by several hypoth...
Purpose: The aim of this work is to present the results of the study of the local structure of iron nanoparticles
with oxide shell which uses EXAFS method that apply synchrotronic radiation.
Design/...
Effect of silicon concentration in bath on the structure and thickness of grey cast iron coating after alphinising
Casting Aluminium Silumins Grey cast iron
2009/12/1
Purpose: This paper presents the results of studies on the effect of silicon content in alphinising bath on the
thickness of diffusion layer „g1” and of coating „g” produced by immersi...