Microstructure, surface topography and mechanical properties of slip cast and powder injection moulded microspecimens made of zirconia

Auhorn, M.; Kasanická, B.; Beck, Tilmann; Schulze, Volker; Löhe, D.

doi:10.3139/146.030599

Cited by 7 publications

(2 citation statements)

References 4 publications

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“…Residual stresses in zirconia specimens produced by μPIM were measured using a diffractometer [125]. Further studies on investigating mechanical properties of μPIM components could be found in the literature [126,127].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

A review of micro-powder injection moulding as a microfabrication technique

Attia

Alcock

2011

J. Micromech. Microeng.

114

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Micro-powder injection moulding (μPIM) is a fast-developing micro-manufacturing technique for the production of metal and ceramic components. Shape complexity, dimensional accuracy, replication fidelity, material variety combined with high-volume capabilities are some of the key advantages of the technology. This paper assesses the capabilities and limitations of μPIM as a micromanufacturing technique by reviewing the latest developments in the area and by considering potential improvements. The basic elements of the process chain, variant processes and simulation attempts are discussed and evaluated. Challenges and research gaps are highlighted, and potential areas for improvement are presented.

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Section: Mechanical Propertiesmentioning

confidence: 99%

A review of micro-powder injection moulding as a microfabrication technique

Attia

Alcock

2011

J. Micromech. Microeng.

114

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“…Up to now, literature on manufacturing ceramic small holes and small-hole arrays by μPIM is scare. Auhorn and Kasanicka [13] have studied the mechanical strength and microstructure of metal micro components. The results show that the factors inducing the invalidation of micro components are surface roughness, holes near surface, and edge effect.…”

Section: Introductionmentioning

confidence: 99%

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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