Influence of titanium on the formation of a “barrier” layer during joining an A1N ceramic with copper by the CDB technique

Olesińska, W.; Kaliński, D.; Chmielewski, Marcin; Diduszko, R.; Włosiński, W.

doi:10.1007/s10854-006-0024-1

Cited by 19 publications

(12 citation statements)

References 6 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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“…Corundum is now the third among the most often used dielectrics (after SiO 2 and SiN 4 ). On the other hand, the choice of titanium as the coating material, detonation-sprayed on the ceramic, was based on literature reports [21][22][23][24] which describe titanium as the material that actively enhances the wetting of ceramics by metals and facilitates the formation of the joint even when it is only an alloying additive. In view of the strong chemical affinity of titanium to oxygen and aluminum (the basic components of the Al 2 O 3 ceramic), new compounds of the Ti-O and Ti-Al systems are formed.…”

Section: Substrate and Coating Materialsmentioning

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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“…This method is only briefly mentioned in some references (Raebel et al 1990;Ko 1998;Dearnaley and Arps 2006). Ion implantation is a very popular method for the modification of other materials (Jagielski 2005;Jagielski et al 2006), such as metals and alloys (Barlak et al 2014), ceramics (Piekoszewski et al 2004;Olesińska et al 2006;Barlak et al 2007b), composites (Sheikh-Ahmad and Bailey 1999), and semiconductors (Werner et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Technical Note: Life-time improvement and the cutting forces in nitrogen-implanted drills during wood-based material machining

Wilkowski

Barlak

Werner

et al. 2019

WFS

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This study explored the effects of nitrogen (N) ion implantation of drills for wood-based materials. Modification of a tool's surface is a common process of prolonging its lifetime. For the purpose of this study, ion implantation was used for modification of drills commonly used in the furniture industry. The rake face of high-speed steel drills was implanted with different doses of nitrogen ions. Durability tests were conducted with the use of a computerized numerical control woodworking machine used for drilling laminated particleboards. The cutting force and drilling torque were measured. The obtained results were presented as wear curves of the examined drill bits. Based on the results, tools implanted with nitrogen ions at different doses had a longer tool life.

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Influence of titanium on the formation of a “barrier” layer during joining an A1N ceramic with copper by the CDB technique

Cited by 19 publications

References 6 publications

Method and Apparatus for Determining Operational Parameters of Thermoelectric Modules

Method and Apparatus for Determining Operational Parameters of Thermoelectric Modules

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

Technical Note: Life-time improvement and the cutting forces in nitrogen-implanted drills during wood-based material machining

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