Characterization of metallic micro rod arrays fabricated by μMIM

Tay, B.Y.; Liu, L.; Loh, N.H.; Tor, Shu Beng; Murakoshi, Y.; Maeda, Ryutaro

doi:10.1016/j.matchar.2005.11.021

Cited by 27 publications

(29 citation statements)

References 13 publications

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“…The linear shrinkage of substrate and small holes is shown in Table 3. The linear shrinkage of the length, width, and height of the substrate are much closer, at about 19%, which is unified with the powder loading [15]. The linear shrinkage of three kinds of small holes is 12.7% for Ф500 μm holes, 11.2% for Ф450 μm holes, and 14.7% for Ф400 μm holes, respectively.…”

Section: Properties Of Feedstocksupporting

confidence: 51%

Small-hole arrays of ceramic material manufactured by micro powder injection molding

Wang

Zhang

2011

Int J Adv Manuf Technol

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Ceramic substrate with three kinds of small-hole arrays (the minimum diameter is 400 μm) was manufactured by micro powder injection molding. The homogeneity, thermal, and rheological properties of the feedstock was characterized by means of SEM, Archimedes method, TGA, DSC, and capillary rheometer, respectively. The feedstock has good uniformity and the viscosity of feedstock accords with the pseudo-plastic behavior which is suitable for micro powder injection molding. The test results also show that the linear shrinkage of small holes is lower than the substrate which is important to mold design and size contraction of the sample. Moreover, the porosity of the sintered substrate is lower than that of the thin wall between two neighborhood small holes. Good surface roughness of the sintered samples is obtained by using sub-micron ZrO 2 powder which is even lower than molded surface. The relative density and hardness of the ceramic substrate with small-hole arrays sintered under 1,500°C for 2 h is 98.3% and 13.68 GPa, respectively.

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Section: Properties Of Feedstocksupporting

confidence: 51%

Small-hole arrays of ceramic material manufactured by micro powder injection molding

Wang

Zhang

2011

Int J Adv Manuf Technol

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“…Due to the effect of smaller powder size, the temperature profile of debinding and sintering in PIM are controlled strictly to avoid the occurrence of warpage, bubble and contamination. The surface roughness, shrinkage, microstructure, micro-mechanical and micro-tribologoical properties of microcomponents were characterized by various methods [10][11][12][13]. These results, in turn, can optimize the processing parameters of PIM.…”

Section: Introductionmentioning

confidence: 99%

Replication and characterization of 316L stainless steel micro-mixer by micro powder injection molding

Meng

Loh

et al. 2010

Journal of Alloys and Compounds

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“…In the last decade, demand of miniaturization has been enlarged in several industrial fields such as electronics, healthcare, automobiles and environmental monitoring, etc [1,2]. Especially, significance of metallic and ceramic micro parts seems being increased largely for application to chemical and dynamic systems, owing to their excellent corrosion resistant, magnetic and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Oxide Formation In Metal Injection Molding Of 316L Stainless Steel

Jang¹,

Lee²,

Ko³

et al. 2015

Archives of Metallurgy and Materials

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The effects of sintering condition and powder size on the microstructure of MIMed parts were investigated using water-atomized 316L stainless steel powder. The 316L stainless steel feedstock was injected into micro mold with micro features of various shapes and dimensions. The green parts were debound and pre-sintered at 800• C in hydrogen atmosphere and then sintered at 1300• C and 1350• C in argon atmosphere of 5torr and 760torr, respectively. The oxide particles were formed and distributed homogeneously inside the sample except for the outermost region regardless of sintering condition and powder size. The width of layer without oxide particles are increased with decrease of sintering atmosphere pressure and powder size. The fine oxides act as the obstacle on grain growth and the high sintering temperature causes severe grain growth in micro features due to larger amount of heat gain than that in macro ones.

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Characterization of metallic micro rod arrays fabricated by μMIM

Cited by 27 publications

References 13 publications

Small-hole arrays of ceramic material manufactured by micro powder injection molding

Small-hole arrays of ceramic material manufactured by micro powder injection molding

Replication and characterization of 316L stainless steel micro-mixer by micro powder injection molding

Oxide Formation In Metal Injection Molding Of 316L Stainless Steel

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