investigation of the sintering and melting of jsc

investigation of the sintering and melting of jsc

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4.4.Phase evolution

An Investigation Into The Sintering Of Magnesium Fluoride

The presented work was an investigation on the sintering of magnesium fluoride with microwaves.The sintering was conducted in a 2.45-GHz microwave applicator under an argon atmosphere.Sintering shrinkage and density were measured.The microstructure of the sintered samples was examined.Feasibility and advantages regarding microwave sintering of magnesium fluoride were discussed.Effect of Sintering Temperature on Structural and Willemite- (Zn 2 SiO 4 -) based glass ceramics doped with various amounts of europium oxide (Eu 2 O 3 ) were prepared by solid state melting and quenching method.Effect of sintering temperature (6001000 investigation of the sintering and melting of jsc#176;C) on structural and morphological properties of the doped samples was investigated.Phase composition,phase evolution,functional groups,and microstructure analysis were,respectively

Experimental investigation into selective laser melting of

Experimental investigation into selective laser melting of austenitic and martensitic stainless steel powder mixtures P G E Jerrard,L Hao,and K E Evans Proceedings of the Institution of Mechanical Engineers,Part B Journal of Engineering Manufacture 2009 223 11 ,1409-1416Formation,Sintering and Removal of Biomass Ash Depositsmeasured.The effects of sintering temperature (500 1000 investigation of the sintering and melting of jsc#176;C),sintering time (0 24 h),deposit composition,thermal shocks on the deposit,and steel type were investigated.The results revealed that the adhesion strength of ash deposits was dependent on two factors the ash melt fraction,and corrosion

Investigation of Ash Sintering during Combustion of

In the process of creating sustainable heat and power production systems it is important to find alternative,renewable fuels that are carbon dioxide neutral.Preferably these fuels should be domestic,thus diminishing the need for transportation.One option could be to use existing residues from local agriculture and food production.Development of combustion methods suitable for such Investigation of Pressing and Sintering Processes of CP-Ti This work used in-situ and ex-situ techniques to investigate the pressing and sintering processes of commercially pure (CP) Ti powder made by the Armstrong process.The objective is to simulate the actual manufacturing process of near net shape Ti components.Ti powders were uniaxially pre-pressed at designated pressures up to 100 ksi to form disk samples with different theoretical densities.

JSC-1 Lunar Simulant

Johnson Space Center.JSC-1 is a glass-rich basaltic ash which approximates the chemical composition,mineralogy,particle size distribution,and engineering properties of lunar mare soil.JSC-1 was produced specifically for large- and medium-scale engineering studies in support of future human activities on the Moon.Such studiesLaser Sintering of Silica Sand Mechanism and Application Silica sand is commonly used in the foundry industry.With a high melting point of 160 investigation of the sintering and melting of jsc#176;C,the silica sand is normally sintered in a high-temperature furnace.However,silica with contents of calcium,aluminium,magnesium,and chlorine,etc.can form low-melting point eutectics.Therefore,a relatively low-power laser can be used to sinter the silica sand directly.

MICROSTRUCTURE AND MECHANICAL PROPERTIES OF

Investigation of microstructure and mechanical properties of nickel free high nitrogen austenitic stainless steel,produced by melting in induction furnace,is presented in this paper.Nitriding of steel was done by melting of nitrogen rich ferroalloy (nitrogen content up toMaterials Free Full-Text An Investigation of Sintering Selective electron beam melting (SEBM) is a relatively new additive manufacturing technology for metallic materials.Specific to this technology is the sintering of the metal powder prior to the melting process.The sintering process has disadvantages for post-processing.The post-processing of parts produced by SEBM typically involves the removal of semi-sintered powder through the use of a

Materials Free Full-Text Ceramic Material Processing

To address this issue,we demonstrate the use of electric current-assisted sintering (ECAS) as a single-step method of compacting and densifying lunar regolith simulant JSC-1A.The sintering temperature and pressure required to achieve a relative density of 97% and microhardness of 6 GPa are 700 deg;C and 50 MPa,which are significantly lower than for the conventional sintering technique.Microwave heating experiment of lunar simulant (JSC-1A May 23,2019 investigation of the sintering and melting of jsc#0183;The Space Instrumentation Group at The Open University is investigating microwave sintering of lunar regolith/simulant as a potential fabrication method of 3D printing on the Moon to build lunar habitats.This has enabled us to integrate our existing expertise in 3D Concrete Printing and knowledge of lunar science and ISRU potential on the Moon to perform a series of microwave sintering

NUMERICAL MODELLING OF MICROWAVE SINTERING

Figure 1 Microwave sintering using a kitchen mi-crowave The picture on the left shows an intrared ther-mometer setting for measuring the surface tempera-ture of specimen,the middle and right pictures show the sintered/melted lunar simulant JSC-1A.Domestic kitchen microwaves are not ideal for sin-Open Access proceedings Journal of Physics ConferenceThe melting point of the PS binder was originally 61 investigation of the sintering and melting of jsc#186;C,whereas that of PE was 127 investigation of the sintering and melting of jsc#186;C.The mixing and molding temperatures should be set above the melting point of the highest melting component of the binder to ensure that all the binders will melt and that the mold will be homogenously filled with the feedstock.Mold temperature should

PROPERTY INVESTIGATIONS OF (U,Gd)O 2 FUEL WITH

As a result of this interdiffusion the sintering rate decreases and the densification process is shifted to higher temperatures.The influence of the sintering environment produced by JSC MSZ.Investigation of density and oxygen to metal ratio The density of fuel pellets was investigated by the immersion technique.The oxygen toPorous biocompatible implants and tissue scaffolds An investigation of the technical aspects of producing sufficiently high strength porous biocompatible medical implants and tissue scaffolds from nitinol or pure titanium using selective laser sintering/melting (SLS /M) is presented.In particular,the necessary processing parameters and procedures for successful laser synthesis of functionally graded implants have been established.

Preliminary investigation on distribution of residual

Dec 03,2008 investigation of the sintering and melting of jsc#0183;Preliminary investigation on distribution of residual stress generated by the selective laser melting process C Casavola,S L Campanelli,and C Pappalettere The Journal of Strain Analysis for Engineering Design 2008 44 1 ,93-104Selective Laser Sintering of Nanoparticles IntechOpenSelective laser sintering of nanoparticles has received much attention recently as it enables rapid fabrication of functional layers including metal conductors and metaloxide electrodes on heatsensitive polymer substrate in ambient conditions.Photothermal reactions induced by lasers rapidly increase the local temperature of the target nanoparticle in a highly selective manner,and

Sintering of micro-trusses created by extrusion-3D

Feb 01,2018 investigation of the sintering and melting of jsc#0183;No indications of melting are observed in the microstructures of the micro-trusses sintered in hydrogen at the same temperature,most likely because of the reduction of iron oxide which is then unavailable for the formation of low-melting mixed oxides .The sintering of the struts could be further improved by increasing the temperature; however,significant melting occurred in the micro-trusses sintered at 1110 investigation of the sintering and melting of jsc#176;C (a meltingSolar 3D printing of lunar regolith Semantic ScholarAbstract The authors demonstrated the feasibility of sintering lunar regolith layer-by-layer solely using concentrated sunlight.First trials using actual concentrated sunlight led to an inhomogeneous sintering of individual layers of lunar regolith simulant,due to the significant flux density variations caused by atmospheric fluctuations.Tests focusing Xenon light demonstrated however the

Some results are removed in response to a notice of local law requirement.For more information,please see here.12345NextTemperature Temperature 25 investigation of the sintering and melting of jsc#176;C 850 investigation of the sintering and melting of jsc#176;C 1200 investigation of the sintering and melting of jsc#176;C Atmosphere air air vacuum vacuum % % % % Anorthite 91.65 64.02 58.70 79.76 Forsterite 8.35 6.74 6.33 3 more rows investigation of the sintering and melting of jsc#0183;The drying,demolding and sintering conditions for the JSC-Mars-1A slurries are explored in the next step.By applying the square root of time law we analyzed the overall material transport process during casting ( Fig 1c ) which is expressed by L 2 (Pt/),where L is the layer thickness of the body,P the differential pressure across the system,t the casting time and the viscosity of the slurry

Thermal Wadis in Support of Lunar Exploration Concept

millimeter-wave system.The melting temperature of JSC-1AF simulant was ~50 investigation of the sintering and melting of jsc#176;C lower in an argon atmosphere compared to an air atmosphere.The flow of argon during sintering and melting resulted in a small mass loss of 0.04 to 0.1 wt% because of the volatization of alkali compounds.In contrast,theTitanium Powder for Electron Beam Melting Processing further in order to make the powder bed melt safe .The melting process uses even higher energy densities so that the material can reach melting temperature.There have been some investigations on changing the parameters in order to achieve a better understanding of the sintering and melting


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