Ion beam modification of ceramic component prior to formation of AlN-Cu joints by direct bonding process

Barlak, M.; Olesińska, W.; Piekoşzewski, J.; Werner, Z.; Chmielewski, Marcin; Jagielski, J.; Kaliński, D.; Sartowska, B.; Borkowska, K.

doi:10.1016/j.surfcoat.2006.01.090

Cited by 22 publications

(10 citation statements)

References 4 publications

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“…1,2,10-13 Meanwhile, other critical developments in the module construction, such as in the area of materials junctions (ceramicmetal-TE material, barriers and bonders), are ongoing, [14][15][16] including quality measurements of thermoelectric-thermoelectric (TE-TE) junction in cascaded modules. 17,18 The lifetime and the reliability of thermoelectric modules are also important.…”

Section: 3mentioning

confidence: 99%

Method and Apparatus for Determining Operational Parameters of Thermoelectric Modules

Zybała

Schmidt

Kaszyca

et al. 2016

Journal of Elec Materi

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The main aim of this work was to construct and test an apparatus for characterization of high temperature thermoelectric modules to be used in thermoelectric generator (TEGs) applications. The idea of this apparatus is based on very precise measurements of heat fluxes passing through the thermoelectric (TE) module, at both its hot and cold sides. The electrical properties of the module, under different temperature and load conditions, were used to estimate efficiency of energy conversion based on electrical and thermal energy conservation analysis. The temperature of the cold side, T c , was stabilized by a precise circulating thermostat (£0.1°C) in a temperature range from 5°C to 90°C. The amount of heat absorbed by a coolant flowing through the heat sink was measured by the calibrated and certified heat flow meter with an accuracy better than 1%. The temperature of the hot side, T h , was forced to assumed temperature (T max = 450°C) by an electric heater with known power (P h = 0-600 W) with ample thermal insulation. The electrical power was used in calculations. The TE module, heaters and cooling plate were placed in an adiabatic vacuum chamber. The load characteristics of the module were evaluated using an electronically controlled current source as a load. The apparatus may be used to determine the essential parameters of TE modules (open circuit voltage, U oc , short circuit current, I sc , internal electrical resistance, R int , thermal resistance, R th , power density, and efficiency, g, as a function of T c and T h ). Several commercially available TE modules based on Bi 2 Te 3 and Sb 2 Te 3 alloys were tested. The measurements confirmed that the constructed apparatus was highly accurate, stable and yielded reproducible results; therefore, it is a reliable tool for the development of thermoelectric generators.

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Section: 3mentioning

confidence: 99%

Method and Apparatus for Determining Operational Parameters of Thermoelectric Modules

Zybała

Schmidt

Kaszyca

et al. 2016

Journal of Elec Materi

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“…When using ceramic materials in advanced industrial products it is often required that a metal/ceramic joint should be formed or the surface of the ceramic should be modified [1][2][3][4][5][6][7] so as to combine the properties, intrinsically different, of the ceramic and the metal and to obtain a product with the desired properties and functions. The ceramic/metal joints have been made by two methods.…”

Section: Introductionmentioning

confidence: 99%

Utilizing the energy of kinetic friction for the metallization of ceramics

Chmielewski

Golański

Włosiński

et al. 2015

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The paper is concerned with the metallization of ceramic materials using the friction-welding method in which the mechanism of the formation of a joint involves the kinetic energy of friction. The friction energy is directly transformed into heat and delivered in a specified amount precisely to the joint being formed between the metallic layer and the substrate material. The paper describes the ceramic metallization process, which has been developed by the present authors based on the friction-welding method.The stress and temperature fields induced in the joint during the metallization process were determined using the finite element method with the aim to optimize the process parameters. The results were verified experimentally. The structures of the metallic coatings thus obtained were examined and the results are discussed in the paper.

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“…• lack of wettability of ceramics by metals which results from the differences in their physicochemical properties, and practically, the lack of interactions between these two materials (the bonds in ceramics are ionic, covalent, and mixed, whereas in metals they are metallic), • no mutual solubility, • weak diffusion of metals into ceramics, • different crystallographic lattices, • substantial difference of the hardness, brittleness and melting temperature, • and drastic difference in the thermal expansion coefficients α and in thermal conductivity λ (properties especially important from the point of view of the residual stress state induced in the joint) [2,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Metallization of ceramic materials based on the kinetic energy of detonation waves

Chmielewski¹,

Golański²,

Włosiński³

2015

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The paper presents an innovatory low-energy detonation-spraying method suitable for the metallization of ceramic materials, in which the energy necessary for joining the metallic coating with the ceramic is delivered in a mechanical way. In the proposed method, the metallic particles, shot from the spraying gun, impinge onto the ceramic substrate with a high velocity, and their kinetic energy is transformed into heat delivered in a specified portion directly to the region of the metal/ceramic joint being formed. The stress distribution and the temperature field at the coating/substrate interface were analyzed also numerically with the aim to optimize the metallization process parameters so as to stimulate the formation of the coating/ceramic joint and, at the same time, to control the region of heat dissipation, the temperature, and the stress state induced in the joint.

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Ion beam modification of ceramic component prior to formation of AlN-Cu joints by direct bonding process

Cited by 22 publications

References 4 publications

Method and Apparatus for Determining Operational Parameters of Thermoelectric Modules

Method and Apparatus for Determining Operational Parameters of Thermoelectric Modules

Utilizing the energy of kinetic friction for the metallization of ceramics

Metallization of ceramic materials based on the kinetic energy of detonation waves

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