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Toplam kayıt 22, listelenen: 1-10
Development of ?-ß SiAlON ceramics from different Si 3N4 starting powders
(2009)
?-ß SiAlON ceramics were produced from different starting Si3N4 powders including P-Si3N4 and ?-Si3N4 powders and mixtures of these powders. Gas pressure sintering was used for sintering. After sintering, resultant fracture ...
Effect of earth alkaline oxides on firing behaviour of porcelain stoneware
(Techna Srl, 2010)
Aim of this study was to investigate the relations between chemical composition and firing behaviour of porcelain stoneware formulations. The effects of magnesia and/or calcia incorporation in varying amounts into a standard ...
A comparative study of SiAlON ceramics
(Elsevier Sci LTD, 2012)
Two different varieties of Si3N4 powders were used to prepare SiAlON ceramics. 100% beta-Si3N4 was used from refractory grade powders (B1) and another purer 98% alpha-Si3N4 (50A) powder was used to prepare the SiAlON ...
Wear behavior of solid SiAlON milling tools during high speed milling of Inconel 718
(Elsevier Science Sa, 2017)
Machining of Inconel 718 is a challenging process because of high hot strength and hardness, high reactivity with the tool materials and low thermal conductivity of Inconel 718 alloy. Although SiAION ceramics in the form ...
Quantitative X-ray diffraction analysis of reactive infiltrated boron carbide-aluminium composites
(Elsevier Sci LTD, 2003)
Dense (> 98% of theoretical) boron carbide, (B4C)-aluminium (Al) composites were produced between 985 and 1370 degreesC by pressureless melt infiltration of Al alloys into porous B4C compacts under. argon (Ar) atmosphere. ...
Pressureless melt infiltrated non-oxide ceramic-metal composites
(2009)
In the present study highly dense (open porosity > 1 %), light-weight (d ? 2.85 g/cm3) and Al4C3-free non-oxide ceramic-metal composites were produced at comparatively low temperatures (? 1250°C) by pressurless melt ...
Influence of SiC addition on tribological properties of SiAlON
(Elsevier Sci LTD, 2011)
The tribological properties of gas pressure sintered SiAlON and its composite with 18 wt% silicon carbide (SiC) against two different mating materials, i.e., alumina and SiAlON are evaluated. SiAlON and SiAlON-18%SiC ...
Sintering behaviour of precursor mullite powders and resultant microstructures
(Elsevier BV, 1996)
Crystallization and sintering behaviour of two structurally different diphasic precursor mullite powders were studied. Powder derived from boehmite and colloidal silica formed mullite at around 1250°C and could be sintered ...
Investigation on the performance of SiAlON ceramic drills on aerospace grade CFRP composites
(Elsevier Science Sa, 2015)
Carbon fiber reinforced polymer (CFRP) composites are widely used in aircraft structure due to their outstanding physical and mechanical properties. Drilling is one of the most critical operation in the handling of CFRP ...
Processing, phase evaluation and mechanical properties of MoSi2 doped 4TaC-HfC based UHTCs consolidated by spark plasma sintering
(Elsevier Sci LTD, 2016)
In this research, binary 4TaC-HfC based composites were consolidated using carbide materials and addition of 0-15 vol.% MoSi2 by means of spark plasma sintering at 2000 degrees C. The nearly full dense and monophase specimens ...