• Title/Summary/Keyword: crack growth rate

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Effect of the processing variables on the formation of $Pb(Sc_{1/2}Nb_{1/2})O_3$ thin layers ($Pb(Sc_{1/2}Nb_{1/2})O_3$ 박막 형성에 미치는 공정변수의 영향)

  • Park, Kyung-Bong;Kwon, Seung-Hyeop;Kim, Tae-Huei
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.19 no.2
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    • pp.70-74
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    • 2009
  • Effect of the processing variables on the formation of $Pb(Sc_{1/2}Nb_{1/2})O_3$(hereafter PSN) thin layers prepared on Pt(111)/Ti/$SiO_2$/Si substrates using the sol-gel and the spin coating method has been studied. After each deposition, the coated films were heated at $370^{\circ}C$ for 5 min. Then they were finally sintered at temperature range of $600{\sim}700^{\circ}C$ by RTA(rapid thermal annealing). The final multilayered films showed a (111) preferred orientation. On a while, the layer-by-layer crystallization of multilayered amorphous thin films without the intermediate heating exhibited a (100) preferred orientation. In case of heat treatment in the tube furnace with the heating rate of $4^{\circ}C/min$, (100) and (111) oriented thin layers were formed simultaneously. The microstructure of the deposited films were dense and crack-free with thickness of 300nm, irrespective of the processing variables.