Synthesis and properties of cerium and titanium oxide thin coatings for corrosion protection of 304 stainless steel

被引:53
作者
Nazeri, A
TrzaskomaPaulette, PP
Bauer, D
机构
[1] Naval Research Laboratory, Materials and Technology Division, Washington, DC 20375
关键词
ceria; titania; corrosion-resistance; coatings; stainless steel;
D O I
10.1023/A:1018381503008
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Powders and thin coatings of ceria and titania were synthesized from aqueous and solvent-based precursors. Thin coatings were deposited on polished 304 stainless steel coupons by dipping them in the appropriate sol-gel oxide precursors. The coatings were subsequently densified and crystallized at several hundreds of degrees. It was possible to obtain dense titania coatings by applying thin coatings of cerium dioxide prior to titania on stainless steel substrates. Underlayer ceria coatings proved to be pivotal in obtaining dense titania coatings and preserving the integrity of the stainless steel while going through the high temperature treatments. The effect of processing parameters such as the atmosphere of heat-treatment, and temperature on the microstructure and crystal structure of the films and powders of ceria and titania was investigated. X-ray diffraction was used to identify the crystal structure of films and powders upon heat-treatment. Electrochemical measurements in NaCl, and analytical techniques such as SEM and EDX were used to evaluate the corrosion performance and pitting morphology of coated samples. A composite coating of ceria and titania was able to prevent crevice corrosion and increase the pitting resistance of the 304 stainless steel relative to the uncoated substrate.
引用
收藏
页码:317 / 331
页数:15
相关论文
共 14 条
  • [1] CORROSION-RESISTANT SOL-GEL ZRO2 COATINGS ON STAINLESS-STEEL
    ATIK, M
    AEGERTER, MA
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1992, 147 : 813 - 819
  • [2] CZERWINSKI F, 1993, J ELECTROCHEM SOC, V140
  • [3] Neto PD, 1994, J SOL-GEL SCI TECHN, V1, P177
  • [4] THE INFLUENCE OF SUPERFICIALLY APPLIED OXIDE POWDERS ON THE HIGH-TEMPERATURE OXIDATION BEHAVIOR OF CR2O3-FORMING ALLOYS
    ECER, GM
    SINGH, RB
    MEIER, GH
    [J]. OXIDATION OF METALS, 1982, 18 (1-2): : 55 - 81
  • [5] BOROSILICATE COATINGS ON MILD-STEEL
    GUGLIELMI, M
    FESTA, D
    INNOCENZI, PC
    COLOMBO, P
    GOBBIN, M
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1992, 147 : 474 - 477
  • [6] HAANAPPLE VAC, 1988, OXID METALS, V30
  • [7] THE INFLUENCE OF ION-IMPLANTED YTTRIUM ON THE SELECTIVE OXIDATION OF CHROMIUM IN CO-25 WT PERCENT CR
    HOU, PY
    STRINGER, J
    [J]. OXIDATION OF METALS, 1988, 29 (1-2): : 45 - 73
  • [8] THE EFFECT OF CERIA COATINGS ON THE HIGH-TEMPERATURE OXIDATION OF IRON-CHROMIUM ALLOYS
    HUSSEY, RJ
    PAPAIACOVOU, P
    SHEN, J
    MITCHELL, DF
    GRAHAM, MJ
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 120 : 147 - 151
  • [9] PREPARATION OF KTAO3 AND KNBO3 SOLID-SOLUTIONS THROUGH SOL-GEL PROCESSING
    NAZERI, A
    KAHN, M
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (08) : 2125 - 2133
  • [10] SEAL S, 1994, OXID METALS, V41