Abstract
Gas cluster ions contain tens, hundreds or even more than thousands of atoms or molecules as ionized particles. It has been shown that the bombarding effects of gas cluster ions on solid surfaces are quite different from those by monomer ions and involve unique material processing characteristics. In order to make clear the bombarding effects, a study of surface modification of sapphire by Ar and CO2 gas cluster ion beams has been performed.
Thickness of the damaged layer and surface roughness produced on sapphire depends strongly on cluster ion energy. Damage layer thickness on a sapphire surface bombarded by 150 keV clusters with average size of about 3000 atoms was 40Å. No significant difference was observed in IR transmittance after cluster bombardment. Mechanical properties of sapphire surfaces can be changed by cluster irradiation at a dose of 1011 ions/cm2.
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References
D.C.Harris, Infrared Window and Dome Materials, SPIE Press, Bellingham, Washington, 1992.
J.S.Lin and L.B.Wechesser, Thermal shock capabilities of infrared dome materials (Johns Hopkins APL Technical Digest 1992) 13, pp. 379–385.
W.D.Scott and K.K.Orr, J.Am.Cer.Soc. 66, 27–-32 (1983).
S.M.Widerhorn, B.J.Hockey and D.E.Roberts, Philos. Mag., 28, 783–796 (1973).
A.H.Heuer, Philos. Mag., 13, 379–393 (1966).
C.W.White, C.J.McHargue, P.S.Sklad, L.A.Boatner, and G.C.Farlow, Mater. Sci. Rep., 4, 41–46 (1989).
C.J.Mchargue, M.E.O’Hem, C.W.White and M.B.Lewis, Mater. Sci. Eng., A115, 361–367 (1989).
M.E.O’Hem, C.J.McHargue, C.W.White, G.C.Farlow, Nucl. Instrum. Methods Phys. Res., B46, 171–175(1990).
J.A.Northby, T.Jiang, G.H.Takaoka, I.Yamada, W.L.Brown and M.Sosnowski, Nucl. Instr. and Meth., B74, 336 (1993).
J.Matuso, M.Akizuki, J.A.Northby, G.H.Takaoka and I.Yamada, Proc. of ICSSPIC-7, in: Surf. Rev. Lett, in press.
H.Hsieh, R.S.Averback, H.Sellers and C.P.Flynn, Phys. Rev. B45, 4417 (1992)
Z.Insepov, M.Sosnowski and I.Yamada, Laser and Ion Beam Modification of Materials, edited by I.Yamada(Elsevier, 1994) p. 111.
M.Akizuki, M.Harada, Y.Miyai, A.Doi, T.Yamaguchi, J.Matsuo, G.H.Takaoka, C.E.Ascheron and I.Yamada, Nucl. Instr. and Meth., in press.
I.Yamada, J.Matsuo, Z.Insepov and M.Akizuki, Proc. of IBMM (1994).
J.Matsuo, H.Abe, G.H.Takaoka and I.Yamada, Nucl. Instr. and Meth., in press.
M.Akizuki, M.Harada, Y.Miyai, A.Doi, T.Yamaguchi, J.Matsuo, G.H.Takaoka, C.E.Ascheron and I.Yamada, Proc. of ICSSP1C-7, in: Surf. Rev. Lett., in press.
D.Takeuchi, J.Matsuo, A.Kitai and I.Yamada, Mater. Sci. Eng., A, in press.
L.C.Feldman, R.L.Kaufman and P.J.Silverman, Phys. Rev. Lett, 39, 38 (1977).
H.Amir, Al-Bayati, G.Kevin, Orman-Rossiter, J.A.van den Berg and D.G. Armour, Sur, Sci., 241, 91 (1991).
J.P.Biersack and L.G.Haggmark, Nucl. Instr. Meth., 174, 257 (1980).
T.Hioki, A.Jtoh, M.Okubo, S.Noda, H.Doi, J.Kawamoto and O.Kamigaito, J. Mater. Sci., 21, 1321 (1986).
J.Matsuo, D.Takeuchi, A.Kitai and I.Yamada, Mater. Res. Sci., in press.
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Takeuchi, D., Matsuo, J. & Yamada, I. Bombarding Effects of Gas Cluster Ion Beams on Sapphire Surfaces; Characteristics of Modified Layers and their Mechanical and Optical Properties. MRS Online Proceedings Library 396, 279 (1995). https://doi.org/10.1557/PROC-396-279
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DOI: https://doi.org/10.1557/PROC-396-279