• Title/Summary/Keyword: (110) orientation

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Magnetic Properties of CrO2 Thin Films Deposited by Thermal Deposition (열분해법으로 형성된 산화크롬 박막의 자기적 특성)

  • Choi, Hyun-Ju;Lim, Dae-Soon;Lee, Jeon-Kook
    • Journal of the Korean Ceramic Society
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    • v.41 no.9
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    • pp.653-656
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    • 2004
  • We report the magnetic properties, microstructures, and crystal orientations of the CrO$_2$ thin films on TiO$_2$ single crystals. CrO$_2$ thin films were deposited by thermal decompositions with CrO$_3$ source materials. The microstructure of (110) oriented CrO$_2$ thin films deposited on (110) TiO$_2$ single crystals were uniform. As the oxygen flow rates increased, the resistivity, coercive field, and remnant magnetization of the CrO$_2$ thin films on TiO$_2$ single crystals decreased.

A study on the photodegradiation of 4-hydroxy-biphenylcarboxylic acid by $TiO_2$ ($TiO_2$에 의한 4-hydroxy-biphenylcarboxylic acid의 광분해 연구)

  • 유수창;이상희;임정훈;김동희;전형탁;김복희
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.12 no.2
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    • pp.110-114
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    • 2002
  • The relationship between the orientation of molecules adsorbed on $_TiO2$ and their photoproducts was examined by employing HBPCA (4-hydroxy-biphenylcarboxylic acid) as a model organic pollutant. For this purpose, the Photoproducts after irradiation with UV radiation at various pH were compared by utilizing UV and Raman spectroscopies. It was found from these studies that pH affected the photoproducts probably due to the different orientations of the adsorbed molecules, and that the orientation of the adsorbed molecules and their photoproducts were closely correlated.

Effects on Aesthetic Response of Typicality According to Product Orientation and Price Levels (제품별 지향성과 가격수준에 따른 전형성이 심미적 반응에 미치는 효과에 관한 연구)

  • 이진렬;김진아;홍정표
    • Archives of design research
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    • v.14 no.1
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    • pp.103-110
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    • 2001
  • The purpose of this study is to test the typicality effects to aesthetic response according to product orientation (design-oriented vs function- oriented) and perceived purchase risk. This study overcame the limitations of existing researches which haven't had the consensus about the relationship between typicality and preference and consequently suggested the typicality effect to aesthetic response by analyzing this relationship with product orientation and perceived purchase risk. The results of this study showed the inverted U-shaped relationship in design-oriented products and no relationship in function-oriented products between typicality and preference.

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Crystallographic Relationships of (Ba, Sr) $TiO_3$Thin Film Prepared by Metal-Organic Chemical Vapor Deposition on (111) Textured Pt Electrode

  • Yoo, Dong-Chul;Lee, Jeong-Yong
    • Journal of the Korean Ceramic Society
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    • v.37 no.11
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    • pp.1126-1129
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    • 2000
  • The crystallographic orientations of $Ba_{0.6}$S $r_{0.4}$Ti $O_3$(BST) thin film deposited by a metal-organic chemical vapor deposition on (111) textured Pt electrode were studied with a transmission electron microscopy. The fully crystallized BST thin film (50nm) has (100) and (110) preferred orientations. A high resolution transmission electron microscopy study has revealed the crystallographic orientation relationships between BST thin film and Pt electrode. These relationships explained the preferred orientation of BST film on (111) textured Pt electrode. With these results, we could represent the atomic arrangement at the BST/Pt interface.e.e.

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Synthesis of (110) Oriented Diamond Films by Microwave Plasma Enhanced Chemical Vapor Deposition (마이크로파 플라즈마 화학기상성장법에 의해 (110)면으로 배향된 다이아몬드막의 합성)

  • 박재철;박상현
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 1995.11a
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    • pp.269-272
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    • 1995
  • As methane concentration was varietal, the textures of diamond films deposited on Si(100)substrate could be observed by XRD, SEM and Raman spectroscope. As a result, O$_2$plasma etching has been useful to observe microscopic structure of diamond films by SEM. The cross section of diamond films deposited on Si(100) substrate with 4% concentration of methane to hydrogen was a polycrystal like a pillar. The diamond crystal like a pillar has been oriented to (110) surface and the high quality diamond with FWHM of Raman spectra being 3.8cm$\^$-1/ has been grown. As time goes by deposition time, the preferred orientation increases.

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Synthesis of (110) oriented diamond films by microwave plasma enhanced chemical vapor deposition (마이크로파 플라즈마 화학기상성장법에 의해 (110)면으로 배향된 다이아몬드막의 합성)

  • 박재철;박상현
    • Electrical & Electronic Materials
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    • v.9 no.3
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    • pp.270-276
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    • 1996
  • As methane concentration was varied, the textures of diamond films deposited on Si(100)substrate were observed by XRD,SEM and Raman spectroscope. As a result, $O_{2}$ plasma etching has been useful to observe microscopic structure of diamond films by SEM. The cross section of diamond films deposited on Si(100)substrate with 4% concentration of methane to hydrogen was a polycrystal like a pillar. The diamond crystal like a pillar has been oriented to (110)surface and the high quality diamond film with FWHM of Raman spectra being 3.8 $cm^{-1}$ / has been grown. As time goes by deposition time, the preferred orientation increases

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Goss Texture Development of Asymmetrically Rolled IF Steel Sheet (비대칭 압연한 IF 강 판의 Goss 집합조직 발달)

  • Kim, I.;Nam, S.K.;Kim, G.H.;Lee, D.N.
    • Transactions of Materials Processing
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    • v.26 no.3
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    • pp.150-155
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    • 2017
  • To obtain the Goss texture, {110}<001>, IF steel sheets were asymmetrically rolled by 50-89% reduction in the thickness at room temperature and subsequently annealed at 200, 900, and $1200^{\circ}C$ in a box furnace under air atmosphere. The asymmetrically rolled specimens and annealed specimens show well-developed Goss texture, {110}<001>. After the IF steel sheets were asymmetrically rolled at room temperature and subsequently annealed at $900^{\circ}C$ for 1 h in a box furnace under air atmosphere, the intensity of the Goss texture, {110}<001> was high in the IF steel sheets.

Development of Microstructure and Texture in Cold Rolled INCONEL690 (냉간압연된 인코넬 690에서 미세조직과 집합조직의 발달)

  • 안재평;표은종;허무영
    • Transactions of Materials Processing
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    • v.3 no.4
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    • pp.392-400
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    • 1994
  • The formation of preferred orientations in the cold rolling texture of the Inconel 690 sheets was studied by the x-ray texture measurements and TEM observations. The increasing {220} pole intensity in the plane normal at the higher reductions was related to the {110}<112> texture component. The rolling texture of the Inconel 690 was the pure metal type which could be described by {112}<111>, {123}<634> and {110}<112> orientations. The dislocation cells were found in the near {110}<112> oriented grains. The onset of deformation twins in the {112}<111> oriented grains caused the weakening of {112}<111> and the development of {552}<115> in the rolling texture.

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Composition and Microstrure of Pb-Sn Alloy Electrodeposit (Pb-Sn합금 전착층의 조성 및 조직특성)

  • 예길촌;조성제;김용응;김광수
    • Journal of the Korean institute of surface engineering
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    • v.22 no.4
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    • pp.168-178
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    • 1989
  • The compositions and microstructures of Pb-Sn alloy electrodeposits were investigated in terms of the electrolysis conditions conditions by using fluoborate bath. The Pb content of alloy deposit decreased with increasing dreasing current density until the limting content was obtained. The proferred orientation of Pb-phase in the alloy changed in the sequence of (110)longrightarrow(100)longrightarrow(100)+(110)(311)longrightarrowrandom distribution of crystals with increasing cathode overpotential, while that of $\beta$-Sn phase was (110)(301)(211)n mixed texture. The smooth surface with granular crystallites was obtained below medium current desity, while the rough surface texture was formed at high current density.

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Hole Mobility Enhancement in (100)- and (110)-surface of Ultrathin-body(UTB) Silicon-on-insulator(SOI) Metal Oxide Semiconductors Field Effect Transistor (Ultrathin-body SOI MOSFETs에서 면방향에 따른 정공의 이동도 증가)

  • Kim, Kwan-Su;Cho, Won-Ju
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.20 no.11
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    • pp.939-942
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    • 2007
  • We investigated the characteristics of UTB-SOI pMOSFETs with SOI thickness($T_{SOI}$) ranging from 10 nm to 1 nm and evaluated the dependence of electrical characteristics on the silicon surface orientation. As a result, it is found that the subthreshold characteristics of (100)-surface UTB-SOI pMOSFETs were superior to (110)-surface. However, the hole mobility of (110)-surface were larger than that of (100)-surface. Especially, the enhancement of effective hole mobility at the effective field of 0.1 MV/cm was observed from 3-nm to 5-nm SOI thickness range.