Претраживање
Приказ резултата 1-10 од 23
The austempering study of alloyed ductile iron
(Materials and Design, 2006)
Austempered ductile iron (ADI) proved to be an excellent material as it possesses attractive properties: high strength, ductility and toughness are combined with good wear resistance and machinability. These properties can ...
Fracture micromechanisms in overaged 7000 alloy forgings
(Journal of Alloys and Compounds, 2007)
Micromechanisms controlling the fracture damage in 7000 alloy forgings are studied for T73-type heat treatments. Insight into the fracture modes are obtained by varying the microstructural attributes associated with the ...
Preparation of basalt-based glass ceramics
(Journal of the Serbian Chemical Society, 2003)
Local and conventional raw materials-massive basalt from the Vrelo locality on Kopaonik mountain-have been used as starting materials to test their suitability for the production of glass-ceramics. Crystallization phenomena ...
Structural and mechanical characteristics of ZA27-7 wt.% SiC composites produced by powder metallurgy techniques
(Zeitschrift fur Metallkunde, 2004)
This paper describes a study of the structural and mechanical properties of Zn-matrix composites discontinuously reinforced by 7 wt.% SiC particles of size 0.7 mum. Commercial Zn-rich Zn-Al-Cu. (ZA27) alloy was gas atomized, ...
Effect of LiYO(2) addition on sintering behavior and indentation properties of silicon nitride ceramics
(International Journal of Materials Research, 2006)
The influence of the sintering additive LiYO(2) (5-15 wt.%) on sintering behavior, microstructure and mechanical properties of Si(3)N(4) ceramics was investigated. Since LiYO(2) enables densification of Si(3)N(4) at ...
Microstructure and mechanical properties of precision cast TiAl turbocharger wheel
(Journal of Materials Processing Technology, 2005)
From a technical perspective, many of the unique properties of TiA1-based alummides making them attractive for high-temperature structural application also assign these alloys a challenge to process into useful products. ...
Preparation and properties of polymeric and composite bioresorbable barrier membranes
(Materials Science Forum, 2004)
Bioresorbable barrier membranes have been widely used in dentistry and maxillofacial surgery. When the membranes are placed over bony defects and are closely adapted by the surrounding bone face, an environment that prevents ...
Synthesis of pure and doped LaMnO3 powders from citrate precursors
(Materials Science Forum, 2007)
In this work pure and doped LMO were prepared using modified Pechini method from lanthanum and manganese citrates. Lanthanum citrate was prepared starting from La2O3, while manganese citrate was prepared from Mn(NO3)(2). ...
The dependence of cation distribution, microstrain and magnetic susceptibility on particle size in nanocrystalline Gd2O3/Y2O3
(Scripta Materialia, 2007)
A novel synthesis route based on thermal decomposition of yttrium and gadolinium complexes with 2,4-pentanedione ligand has been used to synthesize 5 nn size (Y0.9Gd0.1)(2)O-3 powder. Refinement of occupancy parameters ...
Micromechanical model for fracture toughness prediction in Al-Zn-Mg-Cu alloy forgings
(Philosophical Magazine, 2008)
An attempt has been made to model the plane-strain fracture toughness, KIc, in Al-Zn-Mg-Cu alloy forgings subjected to overageing. The proposed model, based on the multiple micromechanisms, reveals the quantitative relations ...