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  • The processes of high-temperature diffusion in intermetallic compounds on the base of nickel-silicide and nickel-aluminide. The diffusion joints created by resistance welding or welding by electron beam in vacuum were exposed to the long-term temperature annealing. Concentration profiles of Al and Si in the region of interface boundary NixAly/Ni and NixSiy/Ni were determined by EDX method. For determination of inter-diffusion coefficients we have used Matano-Boltzmann's method, Wagner's equation and a method based on theory of thermal potential of double layer for cases of diffusion processes with moving interface boundary. We have investigated in given systems micro-structural changes and changes of micro-hardness with use of metallographic methods. The existence of micro-pores in the nearness of the phase interface as result of Kirkendall's phenomenon was established.
  • The processes of high-temperature diffusion in intermetallic compounds on the base of nickel-silicide and nickel-aluminide. The diffusion joints created by resistance welding or welding by electron beam in vacuum were exposed to the long-term temperature annealing. Concentration profiles of Al and Si in the region of interface boundary NixAly/Ni and NixSiy/Ni were determined by EDX method. For determination of inter-diffusion coefficients we have used Matano-Boltzmann's method, Wagner's equation and a method based on theory of thermal potential of double layer for cases of diffusion processes with moving interface boundary. We have investigated in given systems micro-structural changes and changes of micro-hardness with use of metallographic methods. The existence of micro-pores in the nearness of the phase interface as result of Kirkendall's phenomenon was established. (en)
  • Procesy vysokoteplotní difuze v intermetalických sloučeninách na bázi NixAly a NixSiy. Difuzní spoje vytvořené odporovým nebo elektronovým svařováním ve vakuu byly podrobeny dlouhodobému žíhání. Koncentrační profily Al a Si v oblasti mezifázového rozhraní NixAly/Ni a NixSiy/Ni byly získány metodou EDX. k stanovení interdifuzních koeficientů byla použita Matano-Boltzmannova metoda, Wagnerova rovnice a metoda založena na teorii teplotního potenciálu dvojité vrstvy pro případy difuzních procesů s pohyblivým mezifázovým rozhraním. Byly zkoumány mikrostrukturní změny v daných systémech a změny mikrotvrdosti pomocí metalografických metod. Byly zjištěna existence mikropórů v blízkosti fázového rozhraní jako důsledek Kirkendallova jevu. (cs)
Title
  • Difuzní pochody v intermetalických sloučeninách
  • Difuzní pochody v intermetalických sloučeninách (en)
  • Difuzní pochody v intermetalických sloučeninách (cs)
skos:prefLabel
  • Difuzní pochody v intermetalických sloučeninách
  • Difuzní pochody v intermetalických sloučeninách (en)
  • Difuzní pochody v intermetalických sloučeninách (cs)
skos:notation
  • RIV/61989100:27360/04:00010751!RIV/2005/GA0/273605/N
http://linked.open.../vavai/riv/strany
  • 377-382
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA106/02/1404)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 560607
http://linked.open...ai/riv/idVysledku
  • RIV/61989100:27360/04:00010751
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Diffusion;inter-diffusion coefficient;Matano-Boltzmann's method;Wagner's equation;Kirkendall's phenomenon;intermetallic compounds;nickel-silicide;nickel-aluminide (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [6934D230280F]
http://linked.open...v/mistoKonaniAkce
  • Jihlava
http://linked.open...i/riv/mistoVydani
  • Praha
http://linked.open...i/riv/nazevZdroje
  • International Conference on Heat Treatment
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Drápala, Jaromír
  • Kursa, Miroslav
  • Losertová, Monika
  • Barabaszová, K.
  • Kubíček, P.
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
http://purl.org/ne...btex#hasPublisher
  • ECOSOND s.r.o.
https://schema.org/isbn
  • 80-239-3651-5
http://localhost/t...ganizacniJednotka
  • 27360
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