The influence of hot pressing conditions on mechanical properties of nickel aluminide/alumina composite

Nosewicz, Szymon; Rojek, Jerzy; Mackiewicz, Sławomir; Chmielewski, Marcin; Pietrzak, K.; Romelczyk-Baishya, Barbara

doi:10.1177/0021998313511652

Cited by 22 publications

(16 citation statements)

References 29 publications

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“…An investigation has been done to determine mechanical properties such as elastic and tensile strength of NiAl/Al 2 O 3 composite by influence of compacting pressure, sintering temperature and time. From the study, NiAl/Al 2 O 3 composite shows the highest tensile strength of 227 MPa at 0.99 relative densities which is closely in agreement that the strength of sintered material increases with increasing density [17]. Furthermore, NiAl/Al 2 O 3 composite with 1 µm NiAl particles at 15% weight fraction showed the best fracture toughness of ~8.1 MPa.m 1/2 about 80% improvement and exhibits crackhealing properties over pure alumina.…”

Section: Effect Of Ceramics In Bond Coat Propertiessupporting

confidence: 75%

Review on Nickel Aluminide based Bond Coat Properties and Oxidation Performance for Thermal Barrier Coating (TBC) Application

Kadir

Manap²,

Satgunam³

et al. 2018

IJET

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Thermal Barrier Coating (TBC) as protective coatings are applied to maintain efficiency and prevent structural failures mainly in gas turbine system. This paper reviews on recent bond coating from Nickel aluminide bond coat with addition of Reactive Elements (RE). This paper also reviews the major concern in TBC with presence of different Reactive Element (RE) added in term of RE composition, properties and oxidation test performance. Recent studies are more focusing on few REs including Ce, Hf, La, Y and Zr based on oxidation property test results. The comparisons clearly show that ceramics addition are superior for bond coat mechanical and thermal properties improvement while RE addition such as Ce and Zr present excellent oxidation performance at 900°C and above.

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Section: Effect Of Ceramics In Bond Coat Propertiessupporting

confidence: 75%

Review on Nickel Aluminide based Bond Coat Properties and Oxidation Performance for Thermal Barrier Coating (TBC) Application

Kadir

Manap²,

Satgunam³

et al. 2018

IJET

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“…• C), high value of Young's modulus (stable when increasing temperature), high mechanical, fatigue, tensile and compressive strengths (also at high temperatures), and good frictional wear resistance [30][31][32].…”

Section: Metal-ceramic Functionally Graded Materials -Manufacturing mentioning

confidence: 99%

Metal-ceramic functionally graded materials – manufacturing, characterization, application

Chmielewski¹,

Pietrzak²

2016

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. Functionally graded materials (FGMs) belong to a new, continuously developing group of materials, finding application in various branches of industry. The idea of freely designing their construction profile, restricted only by the available manufacturing techniques, enables obtaining materials with composition and structure gradients having unprecedented properties. In this paper, selected results of works carried out by the authors and relating to the application of the developed metal-ceramic composites were presented in order to manufacture functionally graded materials for target purposes. Gradient structures with various construction profiles that can play different roles were produced on the basis on the following material pairs: Cr-Al2O3, NiAl-Al2O3 and Cu-AlN. Manufacturing conditions, microstructure characteristics and selected properties, crucial from the point of view of future applications, were presented.

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“…The same powder material has been used in experimental investigation of the complete hot pressing process presented in [2,17]. Those studies were focused on the densification during the sintering stage.…”

Section: Experimental Studiesmentioning

confidence: 99%

Discrete element simulation of powder compaction in cold uniaxial pressing with low pressure

et al. 2015

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This paper presents numerical studies of powder compaction in cold uniaxial pressing. The powder compaction in this work is considered as an initial stage of a hot pressing process so it is realized with relatively low pressure (up to 50 MPa). Hence the attention has been focused on the densification mechanisms at this range of pressure and models suitable for these conditions. The discrete element method employing spherical particles has been used in the numerical studies. Numerical simulations have been performed for two different contact models-the elastic Hertz-Mindlin-Deresiewicz model and the plastic Storåk-ers model. Numerical results have been compared with the results of laboratory tests of the die compaction of the NiAl powder. Comparisons have shown that the discrete element method is capable to represent properly the densification mechanisms by the particle rearrangement and particle deformation.

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The influence of hot pressing conditions on mechanical properties of nickel aluminide/alumina composite

Cited by 22 publications

References 29 publications

Review on Nickel Aluminide based Bond Coat Properties and Oxidation Performance for Thermal Barrier Coating (TBC) Application

Review on Nickel Aluminide based Bond Coat Properties and Oxidation Performance for Thermal Barrier Coating (TBC) Application

Metal-ceramic functionally graded materials – manufacturing, characterization, application

Discrete element simulation of powder compaction in cold uniaxial pressing with low pressure

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