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Spark plasma sintering and complex shapes: The deformed interfaces approach

Manière, Charles and Nigito, Emmanuel and Durand, Lise and Weibel, Alicia and Beynet, Yannick and Estournès, Claude Spark plasma sintering and complex shapes: The deformed interfaces approach. (2017) Powder Technology, 320. 340-345. ISSN 0032-5910

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Official URL: http://dx.doi.org/10.1016/j.powtec.2017.07.048

Abstract

Over the last fewdecades, the SPS technique has proven its benefits in terms ofmicrostructure control, reduction of cycling time and a general stability of the results. However, to overcome the so-called “valley of death” between fundamental research and successful industrialization, the next step is to prove the ability of this technology to perform the total densification of highly complex shape samples. The elaboration of complex shapes with die compaction processes often present densification inhomogeneity because of the thickness differences of the sample. In this paper, we present a method to solve this problem with an approach we called the “deformed interfaces method” that uses sacrificial materials. This method can be generalized to all the pressure assisted sintering techniques and allowa complete densificationwhatever the shape complexity of the part. This method is tested with differentmaterials (Al, CoNiCrAlY, PMMA, Al2O3, 4Y-ZrO2) and shapes. To prove the effectiveness of this method on very high complex shapes, a 98% dense turbine blade shape has been made.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The original PDF of the article can be found at : https://www.sciencedirect.com/science/article/pii/S0032591017305880
HAL Id:hal-01670313
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Funders:
French National Research Agency (ANR)
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Deposited By: cirimat webmestre
Deposited On:21 Dec 2017 10:49

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