Elaboration and characterization of a metal matrix composite: Al/AlN

Couturier, Raphaël; Ducret, D.; Merle, P.; Disson, J.P.; Joubert, P.

doi:10.1016/s0955-2219(97)87873-9

Cited by 59 publications

(38 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Considering that r p , K m , and K p in Eq. (2) are 2.5 lm, 230 W/(m K), and 200 W/(m K), respectively, ITR of the present composites was calculated as 1.5 6 0.3 Â 10 À8 m 2 K/W that is similar to that of AMCs produced by pressure-assisted infiltration 12 or squeeze casting, 13 and that is about ten times lower than that of plasma-sprayed AMCs, which exhibited poor interfacial bonding such as interfacial gaps or sprayed layerlayer boundaries. 25,26 The low ITR of the present composites was attributed to strong interfacial bonding between Al and AlN without any interfacial compound layer.…”

supporting

confidence: 53%

“…, which is about 400 times higher than that in the gas bubbling method composites and theoretically predicted values, [11][12][13][14] indicating that CTE roughly decreases with increasing V p of AlN (14.6 6 0.4 Â10 À6 K À1 for 40 vol% AlN). Compared to Turner's model assuming equilibrium of internal stress between particles and matrix…”

Section: Resultsmentioning

confidence: 70%

“…Recently, aluminum nitride (AlN) has been considered as an attractive second phase in AMCs due to excellent TC and low CTE. [10][11][12][13][14] Thus, a few scenarios have been proposed to fabricate in situ AMCs with AlN by nitridation of Al melt by gas-melt reaction. 5,10 For…”

Section: Introductionmentioning

confidence: 99%

“…25,26 The low ITR of the present composites was attributed to strong interfacial bonding between Al and AlN without any interfacial compound layer. [11][12][13][14] (b) Correlation between TC and ITR in the composites and various ex situ AMCs (V p of second phase is marked with number). [11][12][13]25,26 Note that in situ AMCs with AlN nanoparticles showed invalid ITR due to their large oxygen contents and poor interface stability.…”

mentioning

confidence: 99%

See 3 more Smart Citations

In situ synthesis of cold-rollable aluminum–aluminum nitride composites via arc plasma-induced accelerated volume nitridation

Lee

Park

2016

J. Mater. Res.

View full text Add to dashboard Cite

Our study proposes in situ synthesis of cold-rollable aluminum nitride (AlN) reinforced aluminum matrix composites with attractive thermal properties via arc plasma-induced accelerated volume nitridation (APAVN). Within three minutes of repeated APAVN using commercial nitrogen gas, volume fraction of AlN increased up to 40 vol%, which is the highest value ever reported by in situ nitridation of pure aluminum. The composites contained homogeneously dispersed AlN particulates with strong interfacial bonding and low interfacial thermal resistance, which resulted in unique combination of a relatively low coefficient of thermal expansion and high specific thermal conductivity. APAVN resulted from instantaneous chemisorption of dissociated nitrogen, enhanced diffusion of dissolved nitrogen, and improved wettability, which led to much more AlN formation, ;2.94 Â 10 À1 g/(min cm 3 ), which is about 400 times higher than that in the gas bubbling method. These results would ultimately give us a promising strategy for continuous production of in situ Al-AlN composites for heat sink applications through cost-effective processing.

show abstract

supporting

confidence: 53%

Section: Resultsmentioning

confidence: 70%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

In situ synthesis of cold-rollable aluminum–aluminum nitride composites via arc plasma-induced accelerated volume nitridation

Lee

Park

2016

J. Mater. Res.

View full text Add to dashboard Cite

show abstract

“…Actually, the values obtained for commercial aluminum nitride generally range between 160 and 200 W m -1 K -1 [1][2][3][4] with the highest value of 320 W m -1 K -1 measured on a single crystal [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of swift heavy ion irradiations in polycrystalline aluminum nitride

Nappé

Benabdesselam

Grosseau

et al. 2011

Nuclear Instruments and Methods in Physics Research Section B:

View full text Add to dashboard Cite

Thanks to its high thermal conductivity, aluminum nitride may be a serious candidate as fuel coating for the Gas Fast Reactor. However, its behavior under irradiation is not entirely well understood. In order to catch a glimpse of this behavior, specimens were irradiated with swift heavy ions of different energies then characterised by both thermally stimulated luminescence and optical absorption spectrophotometry. With these techniques, the native defects, as well as those affected by irradiation, were identified: thus, by comparison to the virgin sample, no new defect detectable by these techniques is created by irradiations. Eventually, the fact that these techniques complement each other allowed to understand the effect of irradiation parameters on the defect concentration.

show abstract