Metal-ceramic-composite casting of complex micro components

Buqezi-Ahmeti, D.; Maisenbacher, J.; Gibmeier, Jens; Hanemann, Thomas

doi:10.1007/s00542-012-1624-8

Cited by 5 publications

(4 citation statements)

References 6 publications

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“…It is also possible to fabricate components with movable connections without an additional assembling step after casting. Ahmeti et al [177] examined metal-ceramic-composite casting of Al-bronze and ZrO 2 ceramic. Two kinds of compounds were made: casting around the ceramic microparts with Al-bronze to fabricate a forcefitting compound, (similar to that in figure 9(a)) due to the different coefficients of thermal expansion (CTEs) of the materials used, and then allowing the shrinkage of Al-bronze from casting to room temperature.…”

Section: Microcasting Of Composite Materialsmentioning

confidence: 99%

Micromanufacturing of composite materials: a review

Hasan

Zhao

Jiang

2019

Int. J. Extrem. Manuf.

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Composite materials exhibit advantages from the combination of multiple properties, which cannot be achieved by a monolithic material. At present, the use of composite materials in miniaturized scale is receiving much attention in the fields of medicine, electronics, aerospace, and microtooling. A common method for producing miniaturized composite parts is micromanufacturing. There has been, however, no comprehensive literature published that reviews, compares, and discusses the ongoing micromanufacturing methods for producing miniaturized composite components. This study identifies the major micromanufacturing methods used with composite materials, categorizes their subclasses, and highlights the latest developments, new trends, and effects of key factors on the productivity, quality, and cost of manufacturing composite materials. A comparative study is presented that shows the potential and versatility associated with producing composite materials along with possible future applications. This review will be helpful in promoting micromanufacturing technology for fabricating miniaturized products made of composite materials to meet the growing industrial demand.

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Section: Microcasting Of Composite Materialsmentioning

confidence: 99%

Micromanufacturing of composite materials: a review

Hasan

Zhao

Jiang

2019

Int. J. Extrem. Manuf.

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“…Over the past few decades, two main approaches have been employed to improve the metal surface; one is microstructural modification by adding alloying elements with the dispersion of hard phase and different heat treatment procedures, and another is surface engineering, such as the application of hard coatings, films, and surface treatments. − Nevertheless, most traditional and recently industrialized technologies are unreasonable to use due to limitations such as inefficient diffusion kinetics, processing complications, or difficult experimental setup. − To enhance the service life of the steel surface, a low-alloyed steel substrate with a high-alloyed coating is the most effective solution . Common methods for applying such coatings are composite casting, deposit welding, hot isostatic pressing (HIP) cladding, , etc. Production and processing of materials for surface treatment is a conventionally very energy and resource intensive industrial area.…”

Section: Introductionmentioning

confidence: 99%

“…7−9 To enhance the service life of the steel surface, a low-alloyed steel substrate with a high-alloyed coating is the most effective solution. 10 Common methods for applying such coatings are composite casting, 11 deposit welding, 12 hot isostatic pressing (HIP) cladding, 13,14 etc. Production and processing of materials for surface treatment is a conventionally very energy and resource intensive industrial area.…”

Section: ■ Introductionmentioning

confidence: 99%

Innovative Surface Engineering of High-Carbon Steel through Formation of Ceramic Surface and Diffused Subsurface Hybrid Layering

Hossain

Pahlevani

Cholake

et al. 2019

ACS Sustainable Chem. Eng.

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In this study, we have demonstrated an innovative single-step, low-cost approach for producing a hybrid layered steel surface with superior properties using waste as the resource. This promising method of transforming an industrial grade steel surface into a multilayered multiphase ceramic/diffused subsurface structure using only the waste source could replace technically challenging and expensive high-performance materials. Strong chemical bonds can be achieved between metal and ceramic structures if a suitable structure can be generated by the judicious choice of materials and processes. We recovered various ceramic materials (Ti, Al, Si/nitrides, oxides, etc.) from a complex mixture of wastes, such as automated shredder residue and metalized plastics from food packaging, through a controlled selective reaction to generate a chemically bonded multiphase ceramic and diffused subsurface on high-carbon steel surface as an ultrahard ceramic surface. The diffused subsurface contains submicrometer-sized carbides (Cr/Mn/SiC) which formed by diffusion of carbon into the base metal. Our result reveals that by turning the normal high-carbon steel surface into a multiphase ceramic/diffused subsurface structure, a seamless gradient of hardness from 14.5 GPa in the nanoceramic layer to 6.5 GPa in the base material can be achieved.

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“…Common fabrication methods for applying such coatings are composite casting15, deposit welding16 or hot isostatic pressing (HIP) cladding1417. Composite casting and deposit welding are quite fast and cheap compared with other coating methods, but suffer from thermodynamic restrictions and an inhomogeneous hard-phase distribution compared with coatings obtained from HIP cladding.…”

mentioning

confidence: 99%

Enhancing steel properties through in situ formation of ultrahard ceramic surface

Pahlevani

Kumar

Gorjizadeh

et al. 2016

Sci Rep

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Abrasion and corrosion resistant steel has attracted considerable interest for industrial application as a means of minimising the costs associated with product/component failures and/or short replacement cycles. These classes of steels contain alloying elements that increase their resistance to abrasion and corrosion. Their benefits, however, currently come at a potentially prohibitive cost; such high performance steel products are both more technically challenging and more expensive to produce. Although these methods have proven effective in improving the performance of more expensive, high-grade steel components, they are not economically viable for relatively low cost steel products. New options are needed. In this study, a complex industrial waste stream has been transformed in situ via precisely controlled high temperature reactions to produce an ultrahard ceramic surface on steel. This innovative ultrahard ceramic surface increases both the hardness and compressive strength of the steel. Furthermore, by modifying the composition of the waste input and the processing parameters, the ceramic surface can be effectively customised to match the intended application of the steel. This economical new approach marries industry demands for more cost-effective, durable steel products with global imperatives to address resource depletion and environmental degradation through the recovery of resources from waste.

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Metal-ceramic-composite casting of complex micro components

Cited by 5 publications

References 6 publications

Micromanufacturing of composite materials: a review

Micromanufacturing of composite materials: a review

Innovative Surface Engineering of High-Carbon Steel through Formation of Ceramic Surface and Diffused Subsurface Hybrid Layering

Enhancing steel properties through in situ formation of ultrahard ceramic surface

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