نتایج جستجو برای: reaction sintering

تعداد نتایج: 422963  

2002
M. J. Pascual A. Durán L. Pascual

The characteristics and properties of mixtures of a borosilicate glass and ZrO2 fibres obtained from compacts isothermally sintered are presented. Three different particle sizes of glass powder and different sintering temperatures and times have been used to reveal the influence of the specific surface area and the glass matrix viscosity on sintering. The fundamental developed aspects are the s...

2004
P. M. Souto

Microwave sintering possesses unique attributes and has the potential to be development as a new technique for controlling microstructure and to improve the properties of advanced ceramics. Because microwave radiation penetrates most ceramics, uniform volumetric heating is possible. Thermal gradients, which are produced during conventional sintering because of conductive and radioactive heat tr...

2012
Olga García-Moreno Adolfo Fernández Ramón Torrecillas

Very low thermal expansion materials have been developed in a wide temperature range from -150 oC to 450 oC. These very low expansion materials are composed of a lithium aluminosilicate matrix with dispersed silicon carbide nanoparticles. The nSiC content in the most stable composite has resulted to be 27 vol.%. Powder processing and sintering temperature control have been found to be of key im...

2001
François Chagnon Martin Gagné

Sinter hardening enables the production of P/M parts with high strength and apparent hardness after sintering, eliminating the need for a post sintering heat treatment. The availability of sintering furnaces with improved cooling capacity combined with the development of low alloy steel powders specifically designed for sinter hardening make this process particularly attractive for parts that a...

2013
Jérémie Vasseur Fabian B Wadsworth Yan Lavallée Kai-Uwe Hess Donald B Dingwell

[1] Sintering and densification are ubiquitous processes influencing the emplacement of both effusive and explosive products of volcanic eruptions. Here we sinter ash-size fragments of a synthetic National Institute of Standards and Technology viscosity standard glass at temperatures at which the resultant melt has a viscosity of ∼108-109 Pa.s at 1bar to assess sintering dynamics under near-sur...

2011
Chandan Mohanty

In the pharmaceutical science, sintering has been described as the mechanism for the strengthening of the mechanical properties of consolidated pharmaceutical powders at elevated temperatures, for solid-bond formation during tablet compression, and for thermal curing of polymer-latex film coatings. The concept of sintering was applied in the investigation of the effect of heating on the mechani...

2002
F. Niebling A. Otto M. Geiger

The presented macroscopic FE-model allows to analyze the thermal fields and the resulting stress built up during Selective Laser Sintering. Process and material parameters are focused on Direct Metal Laser Sintering (DMLS). The FE-model is introduced and the assumptions for the model are given. Three different geometric models are discussed. The 3Dmodel shows the sintering of a single line, whe...

Journal: :Materials transactions 2023

Since the die-casting mold repeats rapid heating and cooling during operation, defects such as heat checks generate. Therefore, quality life of are degraded. To improve these demerits, improvement thermal conductivity material is effective. In this study, carbon fibers were added to SKD61(40CrMoV5) tool steel fabricate composites with high conductivity. fiber has a chemical reaction steel, elec...

2014
K. Schuetz J. Hoerber J. Franke

Printing silver nanoparticle inks to generate conductive structures for electronics on polymer substrates has gained increasing relevance in recent years. In this context, the Aerosol-Jet Technology is well suited to print silver ink on 3D-Molded Interconnect Devices (MID). The deposited ink requires thermal post-treatment to obtain sufficient electrical conductivity and adhesion. However, comm...

2013
Rubén Usamentiaga Julio Molleda Daniel F. García Francisco G. Bulnes

Sintering is a complex industrial process that applies heat to fine particles of iron ore and other materials to produce sinter, a solidified porous material used in blast furnaces. The sintering process needs to be carefully adjusted, so that the combustion zone reaches the bottom of the material just before the discharge end. This is known as the burn-through point. Many different parameters ...

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