Experimental based full process simulation of alumina selective laser processed parts densified by cold isostatic pressing and solid state sintering

Wang, Zijian; He, Wenbin; Shi, Yusheng; Zhang, Yisheng

doi:10.1016/j.jeurceramsoc.2014.01.001

Cited by 10 publications

(8 citation statements)

References 23 publications

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“…The press who had been used for the CIP mechanical device during this experiment was 2400 kg f/cm 2 and that was a higher value. The previous research also said higher pressure of CIP machine yielded better properties [7]. Therefore, high pressure of compaction from CIP process clearly support the result of mechanical properties, because the sample zirconia block with the addition of CIP show the highest hardness and high density compared to the sample without addition of CIP.…”

Section: Fig 3 Hardness Value At Different Soaking Time During Cipmentioning

confidence: 61%

Effect of Input Parameter of Cold Isostatic Press (CIP) Towards Properties of Zirconia Block

Zarib*¹,

Abdullah²,

Mazelan³

2019

IJEAT

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Zirconia have become widely studied as consequence of their outstanding mechanical properties, such as hardness, mechanical strength and fracture toughness, which allow them to cover a wide spectrum of applications as structural ceramics, including the field of biomaterials. This study was to compare the strength properties of zirconia block with and without Cold Isostatic Press (CIP). The mechanical properties of zirconia block with and without CIP were characterized. Samples of zirconia block will undergo forming process via Cold Isostatic Pressing (CIP), four levels of soaking time (no CIP, 60, 90 and 120 minutes). All of the sample with different soaking time then were sinter in the furnace. The parameter for sintering process was fixed 1300ºC at rate of 3ºC / min. All of the sample were tested for its strength properties using Vickers test. The density and shrinkage of the zirconia block was be analyzed. Scanning Electron Microscope (SEM) and X-Ray Diffraction (XRD) were used to characterize samples if zirconia blocks.

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Section: Fig 3 Hardness Value At Different Soaking Time During Cipmentioning

confidence: 61%

Effect of Input Parameter of Cold Isostatic Press (CIP) Towards Properties of Zirconia Block

Zarib*¹,

Abdullah²,

Mazelan³

2019

IJEAT

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“…Recently, SOVS model has been developed and applied. WANG simulated the solid phase sintering of alumina ceramics using the improved SOVS model, and the simulation results were consistent with the actual sintering [13][14]. Hong simulated the sintering of iron powder under the condition of fully considering the influence of heat conduction, thermal convection, thermal radiation and thermophysical parameters [15].…”

Section: Introductionmentioning

confidence: 56%

Numerical Simulation and Experimental Verification of Dry Pressed MgTiO3 Ceramic Body during Pressureless Sintering

Wang

Liu

et al. 2021

Preprint

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To clarify the densification law of dry pressed MgTiO3 ceramic body during pressureless sintering, SOVS model modified with creep characteristics was embedded into finite element software Abaqus. The selected model can effectively express the grain boundary characteristics and densification mechanism. The change law of relative density, shrinkage rate, sintering stress and grain size of MgTiO3 cylindrical specimens were investigated by the above numerical simulation method. It showed that the average relative density of ceramic body rose from 60% to 97% and the shrinkage rate resepectively reached 17.28% and 11.99% in axial and radial direction. The average grain size increased from 1μm to 6 μm. In order to verify the accuracy of the simulation results, corresponding sintering experiments on cylindrical specimens were carried out to obtain actual sintering densities and shrinkage rates. It showed that the errors of relative density and shrinkage is below 5% and 2%. Grain growth trend was also basically consistent with the simulation results. After that, the above numerical simulation method was applied into the prediction of fabricating MgTiO3 filter with complex structure. Therefore, the present work provided a reliable numerical simulation method to predict the densification behavior of MgTiO3 ceramics during the pressureless sintering process, which was helpful to design and fabricate microwave dielectric products.

show abstract

“…Recently, SOVS model has been developed and applied. Wang simulated the solid phase sintering of alumina ceramics using the improved SOVS model, and the simulation results were consistent with the actual sintering 13‐14 . Hong simulated the sintering of iron powder under the condition of fully considering the influence of heat conduction, thermal convection, thermal radiation, and thermophysical parameters 15 .…”

Section: Introductionmentioning

confidence: 58%

Numerical simulation and experimental verification of dry pressed MgTiO₃ceramic body during pressureless sintering

Wang

Liu

et al. 2021

J Am Ceram Soc

Self Cite

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To clarify the densification law of dry pressed MgTiO3 ceramic body during pressureless sintering, SOVS model (Skorohod‐Olevsky Viscous Sintering model) modified with creep characteristics was embedded into finite element software Abaqus. The selected model can effectively express the grain boundary characteristics and densification mechanism. The change law of relative density, shrinkage rate, sintering stress, and grain size of MgTiO3 cylindrical specimens was investigated by the above numerical simulation method. It showed that the average relative density of ceramic body rose from 60% to 97%, and the shrinkage rate respectively reached 17.28% and 11.99% in axial and radial direction. The average grain size increased from 1 to 6 μm. In order to verify the accuracy of the simulation results, corresponding sintering experiments on cylindrical specimens were carried out to obtain actual sintering densities and shrinkage rates. It showed that the errors of relative density and shrinkage were below 5% and 2%. Grain growth trend was also basically consistent with the simulation results. After that, the above numerical simulation method was applied into the prediction of fabricating MgTiO3 filter with complex structure. Therefore, the present work provided a reliable numerical simulation method to predict the densification behavior of MgTiO3 ceramics during the pressureless sintering process, which was helpful to design and fabricate microwave dielectric products.

show abstract

Experimental based full process simulation of alumina selective laser processed parts densified by cold isostatic pressing and solid state sintering

Cited by 10 publications

References 23 publications

Effect of Input Parameter of Cold Isostatic Press (CIP) Towards Properties of Zirconia Block

Effect of Input Parameter of Cold Isostatic Press (CIP) Towards Properties of Zirconia Block

Numerical Simulation and Experimental Verification of Dry Pressed MgTiO3 Ceramic Body during Pressureless Sintering

Numerical simulation and experimental verification of dry pressed MgTiO₃ceramic body during pressureless sintering

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Experimental based full process simulation of alumina selective laser processed parts densified by cold isostatic pressing and solid state sintering

Cited by 10 publications

References 23 publications

Effect of Input Parameter of Cold Isostatic Press (CIP) Towards Properties of Zirconia Block

Effect of Input Parameter of Cold Isostatic Press (CIP) Towards Properties of Zirconia Block

Numerical Simulation and Experimental Verification of Dry Pressed MgTiO3&nbsp;Ceramic Body during Pressureless Sintering

Numerical simulation and experimental verification of dry pressed MgTiO3ceramic body during pressureless sintering

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Numerical Simulation and Experimental Verification of Dry Pressed MgTiO3 Ceramic Body during Pressureless Sintering

Numerical simulation and experimental verification of dry pressed MgTiO₃ceramic body during pressureless sintering