Effect Of Sic Powder Content On Lightweight Corundum
SiC Nanofiber Mat A Broad Band Microwave Absorber and
Fiber alignment is a key factor that determines the physical properties of nanofiber mats In this work SiC nanofiber mats with or without fiber alignment are fabricated via electrospinning and the microwave electromagnetic properties of their silicone resin composites 5 wt are investigated in 2–18 GHz By comparing with the composite containing SiC whisker it is found that the
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Effect of SiC‐Reinforcement and Equal‐Channel Angular
Abstract This article deals with powder metallurgical production and modification of properties of a composite material based on an age hardenable Al–Cu alloy The main objective is
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Effect of spinel content on slag attack resistance of high
Abstract High alumina refractory castables based on the Al 2 O 3 MgO CaO diagram ternary system were prepared using tabular alumina white electrofused corundum calcined alumina synthetic spinel dead burned magnesia dolomite and calcium aluminate cement as starting raw materials Two kinds of slags with 9 02 and 4 14 CaO/SiO 2 ratios were studied for slag resistance by means of crucible
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Ceramic Materials for light weight Ceramic Polymer
Silicon carbide SiC Owing to its excellent price efficiency ratio alumina is the preeminent ceramic armor material for ve hicular applications Only when an extremely low weight is required e g for personal protec tion or for helicopters silicon carbide materials may be used Beside these qualities other ceramic materials have
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Improvement of the alkali corrosion resistance and
In terms of improving the alkali corrosion resistance of corundum castables coating technology is applied to preparing the excellent properties of corundum castables with a glaze layer The work focuses on the effect of the ratio of Al2O3/SiO2 on the properties of Li2O Al2O3 SiO2 glazes Furthermore the influence of Li2O Al2O3 SiO2 glazes on the alkali corrosion resistance of corundum
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Silicon Carbide/SIC Nanoparticles Silicon Carbide
Silicon carbide nano powder has chemical stability high thermal conductivity smaller thermal expansion coefficient and better abrasion resistance The micro hardness of SiC nanoparticles is 2840 3320kg/mm2 and hardness is between corundum and diamond Its mechanical strength is higher than the corundum
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Effect of spinel content on slag attack resistance of high
Abstract High alumina refractory castables based on the Al 2 O 3 MgO CaO diagram ternary system were prepared using tabular alumina white electrofused corundum calcined alumina synthetic spinel dead burned magnesia dolomite and calcium aluminate cement as starting raw materials Two kinds of slags with 9 02 and 4 14 CaO/SiO 2 ratios were studied for slag resistance by means of crucible
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Influence of Adding Corundum Powder to Al2O3 MgO
Influence of Adding Corundum Powder to Alumina Magnesia Refractory Castable The slag retaining wall of the tundish is eroded by molten slag during operation and is damaged by the intermittent thermal shock caused by molten steel soaking molten steel scouring and rapid cold and heat which is prone to cracking spalling molten slag penetration and collapse
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Improvement of the alkali corrosion resistance and
In terms of improving the alkali corrosion resistance of corundum castables coating technology is applied to preparing the excellent properties of corundum castables with a glaze layer The work focuses on the effect of the ratio of Al2O3/SiO2 on the properties of Li2O Al2O3 SiO2 glazes Furthermore the influence of Li2O Al2O3 SiO2 glazes on the alkali corrosion resistance of corundum
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Effect of SiC‐Reinforcement and Equal‐Channel Angular
This article deals with powder metallurgical production and property modification of a composite based on an Al–Cu alloy Our approach makes use of
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Lightweighted telescope mirrors Outstanding properties
Reaction bonded SiC mix of alpha SiC and pure SiC To fabricate this material alpha SiC is cast dried and fired After this process a porous SiC alpha mixture is re fired after refilling the pores with pure Si 12 to 40 The material obtained is therefore 100 dense It is also possible to scatter SiC powder of various grain
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Effect of SiC powder content on lightweight corundum
This study investigates five lightweight corundum magnesium aluminate spinel castables LCSC which consisted of porous corundum spinel aggregates and matrices with 0–2 8 wt silicon carbide SiC The effect of the SiC powder content SPC in the matrix on the microstructure strength thermal conductivity and slag resistance was analyzed by XRD SEM and EDS as well as by the
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A novel approach to lightweight alumina‐carbon
A comparative analysis of microstructures and properties was carried out for conventional and lightweight Al 2 O 3 –C refractories with and without Si powder addition We showed that microporous aggregates formed a better aggregate/matrix interface bonding and an improved distribution of SiC
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Effect of Al Si alloy powder on properties of corundum
By means of transient plastic phase process the corundum mullite composites were produced using tabular corundum fused mullite SiO2 micro powder and Al Si alloy powder as raw material The effect of Al Si alloy powder addition on the sintering mechanical strength thermal shock resistance phase composition and microstructure of the specimens treated at 1550 °C for 3 h in an air
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Ceramic Composition Binder Suspensions in the Al 2 O 3
Composite binders with an SiC content from 10 to 40 are prepared on the basis of high alumina chamotte and silicon carbide powder previously dispersed in water Ceramic concretes are prepared based on highly concentrated ceramic binder suspensions HCBS and mullite polydispersed filler by vibration casting and their properties are studied Specimens containing 15 SiC have
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Possible improvements of alumina–magnesia castable by
Effect of SiC powder content on lightweight corundum magnesium aluminate spinel castables Z Chen W Yan S Schafföner Sanbao Ma Dai Ya jie Nan Li Materials Science
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Iron ore is widely exploited and smelted in Asia because of its importance as a mineral resource 1 2 However while obtaining high economic benefits tailings stockpiling has always been a major problem that mining companies need to
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Effect of Silicon Carbide and Titanium Hydride on the
3 1 Effect of Silicone Carbide SiC on Porosity Effect of SiC on the linear expansion was studied by varying the percentage of SiC in the powder mixture between 4 and 10 It was found that the largest linear expansion did occur at the lowest SiC percentage utilized 4 and it was about 134
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Xi an
Effect of carbon sources on the properties of lightweight corundum spinel refractory with density gradient International Journal of Applied Ceramic Technology 2020 17 2 2
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International Journal of AppliedWiley
Effects of SiC content on the densification microstructure and mechanical properties of HfB 2 –SiC composites 449 H R Baharvandi and S Mashayekh Influence of angle of incidence temperature and SiC content on erosive wear behavior of ZrB
Get PriceThe influence of temperature and SiC content on the
Chen Z Yan W Schafföner W Ma SB Dai YJ Li N 2018 Effect of SiC powder content on lightweight corundum magnesium aluminate spinel castables J Alloy Compd 764 210–215 Article Google Scholar 30
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Fabrication characterization and thermal insulation
The fired foamed mullite SiC ceramics contained mullite corundum and β SiC With an increase of clay content the apparent porosity decreased while the compressive strength and thermal conductivity increased
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Mullite corundum gas permeable refractories reinforced by
Based on the above results it was determined that the silicon powder content had a substantial effect on the microstructures and properties of mullite corundum gas permeable refractories As the silicon powder content increased the gas permeability and fracture toughness declined only slightly but the strength improved significantly
Get PriceEFFECT OF ALUMINUM POWDER ON THE SYNTHESIS OF
Effect of aluminum powder on the synthesis of corundum mullite composites CeramicsSilikáty 57 2 2013 135 4 the bulk density of samples decreased and apparent porosity increased with increasing sintering temperature However when the content of aluminum powder is higher than 4 the bulk density of samples first decreased and
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Yan et al investigated the effect of the apparent porosity of corundum aggregates on the strength of lightweight alumina magnesia castables Although the apparent porosity increased from 4 2 to 42 they demonstrated that the porosity had only a
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The Preparation of High Strength and Micropore Lightweight
High strength and micropore lightweight bauxite aggregate was fabricated by low grade raw bauxite powder aluminium hydroxide powder and organic polymer OP OP was used as consolidator binder and pore former and aluminium hydroxide was used as pore former The influence of OP and aluminium hydroxide content on the property of the samples was studied
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Effect of SiC powder content on lightweight corundum
In summary the SiC powder proved to be an efficient additive for lightweight corundum magnesium aluminate spinel castables LCSC It not only enhanced the strength and slag resistance of the LCSC but also left the thermal conductivity at 300 °C and 500 °C unchanged
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The influence of temperature and SiC content on the
Chen Z Yan W Schafföner W Ma SB Dai YJ Li N 2018 Effect of SiC powder content on lightweight corundum magnesium aluminate spinel castables J Alloy Compd 764 210–215 Article Google Scholar 30
Get PriceEffect of SiC particle additions on the corrosion
The plot at 0 SiC wt content on figure 6 a was relatively and significantly more electropositive compared to the plots at 2 5 and 10 SiC wt content in an environment without applied potentials due to the combined action of Mg OH 2 and Al 2 O 3 protective oxides on the alloy surface
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PDF EFFECT OF SiC PARTICLES ON SINTERABILITY OF Al Zn
The purpose of this research is to investigate effect of volume fraction of SiC from gas atomized Al Si SiC powder on premix Al 5 5Zn 2 5Mg 0 5Mg alloy powder ExperimentalPremix Al 5 5Zn 2 5Mg 0 5Mg powder was prepared by Ecka Granules Germany named Alumix 431D
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International Journal of Applied Ceramic Technology Vol
Effects of SiC content on the densification Recycling of waste flat glass in the fabrication of Si 3 N 4 powder by the carbo thermal reduction and nitridation Effect of carbon sources on the properties of lightweight corundum spinel refractory with density gradient Qifa Wan Hongfeng Yin
Get PriceEffect of Al Si alloy powder on properties of corundum
The results indicate that Al Si alloy powder can lead to plastic shaping in corundum mullite materials At the same time additive of Al Si alloy powder can greatly improve the sintering mechanical strength and thermal shock resistance of corundum mullite composites This is because that Al Si alloy powder can melt oxidize in sintering
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Influence of nanoAl2O3 Powder on the Properties of
With Al2O3 micro powder as main raw material a kind of microporous corundum aggregate was prepared by adding nanoAl2O3 powder Effect of nanoAl2O3 powder on the properties of microporous corundum aggregates and its sintering mechanism were studied The results show that the closed porosity of sinter is too low when adding too less nanoAl2O3 powder however excessive nanoAl2O3 powder
Get PriceHomogeneous nucleation of corundum nanocrystallites by
Yoshida M Kato Y Oumi Y et al Homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide based precursor powder Sci Rep 9 14889 2019 https
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