Wetting of HIP AlN-TiB2 ceramic composites by liquid metals and alloys

Mattia, Davide; Desmaison-Brut, Martine; Tétard, D.; Desmaison, J.

doi:10.1016/j.jeurceramsoc.2004.12.012

Cited by 16 publications

(4 citation statements)

References 16 publications

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“…Such formation of Ti-Ni intermetallics is consistent with the previous results of the present author [19]. However, a small amount of Ti is most likely an effective method in reduction of the contact angle for TiB2-Cu melt system [18].…”

Section: Wettability and Contact Anglesupporting

confidence: 92%

“…Another successful approach to improve the wettability of TiB2 was by using the combined (Cu, Ni) liquid phase for cermets, since Ni wets TiB2 [6]. However, other studies revealed that contact of TiB2 with molten nickel bought about extensive corrosion with formation of Ti-Ni secondary phases [18]. Such formation of Ti-Ni intermetallics is consistent with the previous results of the present author [19].…”

Section: Wettability and Contact Anglesupporting

confidence: 89%

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Vaporization and Poor Wettability as the Main Challenges in Fabrication of TiB2-Cu Cermets Studied by SPS

Ziemnicka-Sylwester

2014

Metals

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TiB2-Cu cermets with various volume fractions of copper (from 3 to 30 vol. %) were produced via liquid phase sintering at the temperature range 1100-1200 °C in vacuum using spark plasma sintering (SPS) technique. Full densification could not be achieved as the consequence of poor wettability and vaporizing Cu. The quantitative Rietveld analysis indicated that insignificant reduction in Cu content occurred only in sample with initially 3 vol. % of Cu, but then densification was negligible. The relative density improved along with increasing volume content of Cu (10-20 vol. %), but then predominant amount of Cu introduced was reduced as the effect of vaporization or swelling, which caused that pellet with intended 20 or 30 vol. % of Cu contained respectively only 6 or 17 vol. % after sintering. Moreover, Cu droplets were released from the die at the temperature of 1000-1030 °C near the Cu melting point. The effect of vaporization was successfully reduced by increased heating rate and when isothermal annealing process was skipped, however, it could not be entirely eliminated. The experimental results on Cu vaporization are confronted with parameters that are commonly considered in the production of cermets, such as oxidation, wettability, contact angle and viscosity as well as their impact on densification.

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Section: Wettability and Contact Anglesupporting

confidence: 92%

Section: Wettability and Contact Anglesupporting

confidence: 89%

Vaporization and Poor Wettability as the Main Challenges in Fabrication of TiB2-Cu Cermets Studied by SPS

Ziemnicka-Sylwester

2014

Metals

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“…Next, the model was extended to predict metals interfaces with multiple oxides, borides, carbides and nitrides by correlating with experimental data from literature [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] to a limited temperature range (T/T F 1.0 ∼ 1.1). In total, 107 data sets (table 4) were used to develop the semi-empirical model.…”

Section: En Enmentioning

confidence: 99%

“…Table 4. The construction of work of adhesion (W ad ) data [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. The numbers in parentheses are the number of datasets collected.…”

Section: En Enmentioning

confidence: 99%

A fast hybrid methodology based on machine learning, quantum methods, and experimental measurements for evaluating material properties

Kong¹,

Haverty²,

Simka

et al. 2017

Modelling Simul. Mater. Sci. Eng.

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We present a hybrid approach based on both machine learning and targeted ab-initio calculations to determine adhesion energies between dissimilar materials. The goals of this approach are to complement experimental and/or all ab-initio computational efforts, to identify promising materials rapidly and identify in a quantitative manner the relative contributions of the different material attributes affecting adhesion. Applications of the methodology to predict bulk modulus, yield strength, adhesion and wetting properties of copper (Cu) with other materials including metals, nitrides and oxides is discussed in this paper. In the machine learning component of this methodology, the parameters that were chosen can be roughly divided into four types: atomic and crystalline parameters (which are related to specific elements such as electronegativities, electron densities in Wigner-Seitz cells); bulk material properties (e.g. melting point), mechanical properties (e.g. modulus) and those representing atomic characteristics in ab-initio formalisms (e.g. pseudopotentials). The atomic parameters are defined over one dataset to determine property correlation with published experimental data. We then develop a semi-empirical model across multiple datasets to predict adhesion in material interfaces outside the original datasets. Since adhesion is between two materials, we appropriately use parameters which indicate differences between the elements that comprise the materials. These semi-empirical predictions agree reasonably with the trend in chemical work of adhesion predicted using ab-initio techniques and are used for fast materials screening. For the screened candidates, the ab-initio modeling component provides fundamental understanding of the chemical interactions at the interface, and explains the wetting thermodynamics of thin Cu layers on various substrates. Comparison against ultra-high vacuum (UHV) experiments for well-characterized Cu/Ta and Cu/α-Al2O3 interfaces is also discussed. The new hybrid methodology can be applied to effectively and rapidly screen material options for further investigation, and provide a tractable list for experiments to accelerate optimization and integration of new materials in microelectronics. Our unique hybrid methodology lays a framework for using a combination of experimental and computational simulations to estimate properties for faster screening of materials.

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Wettability in Joining of Advanced Ceramics and Composites: Issues and Challenges

Asthana

Sobczak

2014

Ceramic Transactions Series

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Wetting of HIP AlN-TiB2 ceramic composites by liquid metals and alloys

Cited by 16 publications

References 16 publications

Vaporization and Poor Wettability as the Main Challenges in Fabrication of TiB2-Cu Cermets Studied by SPS

Vaporization and Poor Wettability as the Main Challenges in Fabrication of TiB2-Cu Cermets Studied by SPS

A fast hybrid methodology based on machine learning, quantum methods, and experimental measurements for evaluating material properties

Wettability in Joining of Advanced Ceramics and Composites: Issues and Challenges

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