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Particle-Filled PHPS Silazane-Based Coatings on Steel
被引:60
|作者:
Guenthner, Martin
[1
]
Kraus, Tobias
[1
]
Krenkel, Walter
[1
]
Motz, Guenter
[1
]
Dierdorf, Andreas
[2
]
Decker, Daniel
[2
]
机构:
[1] Univ Bayreuth, D-95440 Bayreuth, Germany
[2] Clariant Adv Mat GmbH, D-65843 Sulzbach, Germany
关键词:
CERAMIC COMPOSITE COATINGS;
THERMAL-DECOMPOSITION;
PRECERAMIC POLYMERS;
THIN-FILMS;
POLYSILAZANE;
PRECURSORS;
OXIDATION;
PHASE;
PYROLYSIS;
BEHAVIOR;
D O I:
10.1111/j.1744-7402.2008.02346.x
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:
Precursor-based composite coatings were developed as barrier coatings on steel against oxidation and corrosion using a silazane in the system SiN as a polymer material and BN particles as a passive filler. After thermal treatment in air up to 800 degrees C, dense and very well adhered ceramic composite SiNO/BN coatings with a thickness of 12 mu m were achieved. These were investigated by means of scanning electron microscopy, energy-dispersive spectrum, glow discharge optical emission spectroscopy, and adhesion measurements. Static oxidation tests on coated mild steel substrates up to 700 degrees C displayed parabolic oxidation kinetics and a reduced weight gain by two orders in magnitude compared with uncoated substrates.
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页码:373 / 380
页数:8
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