Developments in Processing of Functionally Gradient Metals and Metal–Ceramic Composites: A Review

Rajan, T.P.D.; Pai, B.C.

doi:10.1007/s40195-014-0142-3

Cited by 83 publications

(35 citation statements)

References 38 publications

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“…It should be pointed that the metal and ceramic phases are mixed in different volume ratios to form the multi-layered structures in the real FGMs. It can be fabricated by powder metallurgy, chemical vapor deposition, plasma spraying process, centrifugal method [37]. The real material profile of FGMs is of step changes across the thickness, which is often modeled as the linear function or power-law function [38][39][40].…”

Section: Formulation Of the Thermoelastic Instability Problemmentioning

confidence: 99%

Thermoelastic instability of a functionally graded layer interacting with a homogeneous layer

Mao

Wang

2015

International Journal of Mechanical Sciences

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Section: Formulation Of the Thermoelastic Instability Problemmentioning

confidence: 99%

Thermoelastic instability of a functionally graded layer interacting with a homogeneous layer

Mao

Wang

2015

International Journal of Mechanical Sciences

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“…For example, cylindrical Al‐19Si‐5Mg alloys with a concentration gradient of primary silicon and Mg 2 Si particles near the inner and outer surface can be fabricated by centrifugal casting . Centrifugal casting for the production of metal‐ceramic composites is well established . For example, automotive pistons with functionally‐graded aluminium composites can be fabricated .…”

Section: Production Of Gradient Materialsmentioning

confidence: 99%

“…[26] Centrifugal casting for the production of metal-ceramic composites is well established. [27,28] For example, automotivep istons with functionally-graded aluminium composites can be fabricated. [29] Thereby,i mproveds patial thermo-mechanical properties are achieved.F igure 3s hows optical microscopy images of microstructures of ac entrifugally cast piston from piston headt owards the skirt region at different distances.…”

Section: Production Of Gradient Materialsmentioning

confidence: 99%

Putting a New Spin on It: Gradient Centrifugation for Analytical and Preparative Applications

Spinnrock

Cölfen

2019

Chemistry A European J

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Gradient centrifugation is an important technique in chemistry, biology, materials science and engineering. It has big potential beyond the well‐known centrifugation for separation of molecules and particles. Various possibilities for special analysis and separation of particles, but also preparative applications like the production of gradient materials and controlled polymerizations exist. In all examples, a gradient of physical and/or chemical properties is generated by centrifugation and used for the further application. In this Concept article, selected examples of gradient centrifugation are presented, to show important developments in the field and discuss their applications, potential, and limitations. It concludes by analysing future trends of gradient centrifugation that are relevant for academic and industrial usage.

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“…Considering the processing stage of the powder, attention is placed on the sampling and distribution of the powders while those of forming (piling and pressing stage) and sintering (consolidation of powders) stages are influenced by the working environment, which must be achieved at room temperature and high pressure, consecutively. Powder metallurgy possesses the feature of premixing powders and piling layers with graded compositions that fuses the layers together with either hot pressing or cold pressing [8]. During the sintering stage, preservation must be incorporated in order to achieve good product quality because some metals that are highly reactive can be oxidized during hot pressing.…”

Section: Powder Metallurgymentioning

confidence: 99%

Laser Engineering Net Shaping Method in the Area of Development of Functionally Graded Materials (FGMs) for Aero Engine Applications - A Review

Popoola¹,

Farotade²,

Fatoba³

et al. 2016

Fiber Laser

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Modern aero engine components are subjected to extreme conditions were high wear rate, excessive fatigue cycles, and severe thermal attack are inevitable. These aggressive conditions reduce the service life of components. Its generic effect is magnified in the light of understanding the fact that aero engine parts are highly sensitive to functional and dimensional precision therefore, repair and replacement are great factors that promote downtime during operation. Hard thermal barrier coatings have been used in recent times due to their optimized properties for maximum load bearing proficiency with high temperature capability to meet performance and durability required. Nevertheless, less emphasis is being given to the coating-substrate interaction. Functionally graded structures have better synergy and flexibility in composition than coatings, giving rise to controlled microstructure and improved properties in withstanding acute state of affairs. Such materials can be fabricated using Laser Engineered Net Shaping LENS™ , a laser-based additive manufacturing technique. LENS™ offers a great deal in rapid prototyping, repair, and fabrication of three-dimensional dense structures with superior properties in comparison with traditionally fabricated structures. The manufacture of aero engine components with functionally graded materials, using LENS™, can absolutely mitigate the nuisance of buy-to-fly ratio, lost time in repair and maintenance, and maximize controlled dimension and multi-geometric properties, enhanced wear resistance, and high temperature strength. This review presents an extensive contribution in terms of insightful understanding of processing parameters and their interactions on fabrication of functionally graded stainless steel, which definitely influence the final product quality.

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Developments in Processing of Functionally Gradient Metals and Metal–Ceramic Composites: A Review

Cited by 83 publications

References 38 publications

Thermoelastic instability of a functionally graded layer interacting with a homogeneous layer

Thermoelastic instability of a functionally graded layer interacting with a homogeneous layer

Putting a New Spin on It: Gradient Centrifugation for Analytical and Preparative Applications

Laser Engineering Net Shaping Method in the Area of Development of Functionally Graded Materials (FGMs) for Aero Engine Applications - A Review

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