The effect of addition of Al in ZrO2 thin film on its resistance to cracking
Identifieur interne : 001387 ( Main/Repository ); précédent : 001386; suivant : 001388The effect of addition of Al in ZrO2 thin film on its resistance to cracking
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Abstract
The paper reports on the structure, mechanical and optical properties of sputtered Zr-Al-O films. The Zr-Al-O films with Zr/Al> 1 and Zr/Al<1 were prepared by a reactive sputtering using ac pulse dual magnetrons. The magnetrons were equipped with a target composed of Al plate (Ø = 50 mm) fixed to the magnetron cathode by a Zr fixing ring with inner diameter Øin. The content of Al in the Zr-Al-O film was controlled by Øin. It makes possible to control effectively the structure of the Zr-Al-O film determined by a mixture of the crystalline ZrO2 phase and the amorphous Al2O3 phase. The effect of Al content on the structure, mechanical and optical properties of the Zr-Al-O film is investigated in detail. It was found that (i) the Zr-Al-O films with Zr/Al<1 are X-ray amorphous and exhibit low hardness (H ≤ 13 GPa), an effective Young's modulus E* resulting in a low H/E*<0.1 ratio and low elastic recovery We≤60 and (ii) the Zr-Al-O films with Zr/Al>1 are crystalline and exhibit high hardness (H=18 to 19 GPa), an E* satisfying a high H/E* ≥ 0.1 ratio, high We up to 78% and strongly enhanced resistance to cracking during bending even for thick films up to 5 μm.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">The effect of addition of Al in ZrO<sub>2</sub>
thin film on its resistance to cracking</title>
<author><name sortKey="Musil, J" uniqKey="Musil J">J. Musil</name>
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<country>République tchèque</country>
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<author><name sortKey="Sklenka, J" uniqKey="Sklenka J">J. Sklenka</name>
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<author><name sortKey="Cerstvy, R" uniqKey="Cerstvy R">R. Cerstvy</name>
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<author><name sortKey="Suzuki, T" uniqKey="Suzuki T">T. Suzuki</name>
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<author><name sortKey="Mori, T" uniqKey="Mori T">T. Mori</name>
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<author><name sortKey="Takahashi, M" uniqKey="Takahashi M">M. Takahashi</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Center for Science of Environment, Resources and Energy, Keio University, 3-14-1 Hyoshi</s1>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Composition effect</term>
<term>Cracking</term>
<term>Indium additions</term>
<term>Magnetrons</term>
<term>Mechanical properties</term>
<term>Optical properties</term>
<term>Physical vapor deposition</term>
<term>Reactive sputtering</term>
<term>Sputtering</term>
<term>Surface treatments</term>
<term>Thin films</term>
<term>Zirconium oxide</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Effet composition</term>
<term>Addition indium</term>
<term>Oxyde de zirconium</term>
<term>Couche mince</term>
<term>Fissuration</term>
<term>Propriété mécanique</term>
<term>Propriété optique</term>
<term>Pulvérisation réactive</term>
<term>Dépôt physique phase vapeur</term>
<term>Magnétron</term>
<term>Traitement surface</term>
<term>Pulvérisation irradiation</term>
</keywords>
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</teiHeader>
<front><div type="abstract" xml:lang="en">The paper reports on the structure, mechanical and optical properties of sputtered Zr-Al-O films. The Zr-Al-O films with Zr/Al> 1 and Zr/Al<1 were prepared by a reactive sputtering using ac pulse dual magnetrons. The magnetrons were equipped with a target composed of Al plate (Ø = 50 mm) fixed to the magnetron cathode by a Zr fixing ring with inner diameter Ø<sub>in</sub>
. The content of Al in the Zr-Al-O film was controlled by Ø<sub>in</sub>
. It makes possible to control effectively the structure of the Zr-Al-O film determined by a mixture of the crystalline ZrO<sub>2</sub>
phase and the amorphous Al<sub>2</sub>
O<sub>3</sub>
phase. The effect of Al content on the structure, mechanical and optical properties of the Zr-Al-O film is investigated in detail. It was found that (i) the Zr-Al-O films with Zr/Al<1 are X-ray amorphous and exhibit low hardness (H ≤ 13 GPa), an effective Young's modulus E<sup>*</sup>
resulting in a low H/E<sup>*</sup>
<0.1 ratio and low elastic recovery W<sub>e</sub>
≤60 and (ii) the Zr-Al-O films with Zr/Al>1 are crystalline and exhibit high hardness (H=18 to 19 GPa), an E<sup>*</sup>
satisfying a high H/E<sup>*</sup>
≥ 0.1 ratio, high W<sub>e</sub>
up to 78% and strongly enhanced resistance to cracking during bending even for thick films up to 5 μm.</div>
</front>
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<fA08 i1="01" i2="1" l="ENG"><s1>The effect of addition of Al in ZrO<sub>2</sub>
thin film on its resistance to cracking</s1>
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<fA11 i1="01" i2="1"><s1>MUSIL (J.)</s1>
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<fA11 i1="02" i2="1"><s1>SKLENKA (J.)</s1>
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<fA11 i1="03" i2="1"><s1>CERSTVY (R.)</s1>
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<fA11 i1="04" i2="1"><s1>SUZUKI (T.)</s1>
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<fA11 i1="05" i2="1"><s1>MORI (T.)</s1>
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<fA11 i1="06" i2="1"><s1>TAKAHASHI (M.)</s1>
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<fA14 i1="01"><s1>Department of Physics, Faculty of Applied Sciences, University of West Bohemia, Univerzitní 22</s1>
<s2>306 14 Plzen</s2>
<s3>CZE</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<fA14 i1="02"><s1>Center for Science of Environment, Resources and Energy, Keio University, 3-14-1 Hyoshi</s1>
<s2>Kohoku, Yokohama 223-8522</s2>
<s3>JPN</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
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. The content of Al in the Zr-Al-O film was controlled by Ø<sub>in</sub>
. It makes possible to control effectively the structure of the Zr-Al-O film determined by a mixture of the crystalline ZrO<sub>2</sub>
phase and the amorphous Al<sub>2</sub>
O<sub>3</sub>
phase. The effect of Al content on the structure, mechanical and optical properties of the Zr-Al-O film is investigated in detail. It was found that (i) the Zr-Al-O films with Zr/Al<1 are X-ray amorphous and exhibit low hardness (H ≤ 13 GPa), an effective Young's modulus E<sup>*</sup>
resulting in a low H/E<sup>*</sup>
<0.1 ratio and low elastic recovery W<sub>e</sub>
≤60 and (ii) the Zr-Al-O films with Zr/Al>1 are crystalline and exhibit high hardness (H=18 to 19 GPa), an E<sup>*</sup>
satisfying a high H/E<sup>*</sup>
≥ 0.1 ratio, high W<sub>e</sub>
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<s5>56</s5>
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