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(thermal expansion coefficient matching AND interface)

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ITSC2014, Thermal Spray 2014: Proceedings from the International Thermal Spray Conference, 414-419, May 21–23, 2014,
... definitely increase with cooling process, because the thermal expansion coefficient of LSCO is much larger than SiO2 substrate (0.5×10-6 /K). As a result, more bonded inter-splat interface could be fractured to form a lower inter-splat bonding ratio. This is evidently supported by the fact that the coating...
Proceedings Papers

ITSC 2018, Thermal Spray 2018: Proceedings from the International Thermal Spray Conference, 278-285, May 7–10, 2018,
... plastic strain rate . The fraction of plastic energy converted into heat is assigned to be 0.9 [18]. The corresponding thermal response of the material is then defined by its temperaturedependent thermal properties, such as specific heat, thermal conductivity and coefficient of thermal expansion [19]. s...
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ITSC2014, Thermal Spray 2014: Proceedings from the International Thermal Spray Conference, 989-993, May 21–23, 2014,
... coefficient of thermal expansion, which permits a good match with superalloy substrates, and excellent mechanical, chemical and phase stability in thermal cycling conditions[5]. Plasma spraying contributes the additional improvement to the thermal shock resistance as a result of the porosity inherent...
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ITSC2012, Thermal Spray 2012: Proceedings from the International Thermal Spray Conference, 639-645, May 21–24, 2012,
... toughness makes them promising support materials, high thermal expansion coefficient of the materials must be well matched with other parts of SOFCs. On the other hand, cermet material possesses the advantages of both ceramics and metals such as excellent mechanical property and desirable thermal expansion...
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ITSC2012, Thermal Spray 2012: Proceedings from the International Thermal Spray Conference, 137-142, May 21–24, 2012,
... believed that the lower thermal expansion coefficient of the SS430 coatings reduces the thermal stresses within the coating and helps preserving its integrity. On the other hand, SS304 offers a better thermal expansion coefficient match with the A356 substrates. This should minimize the thermal stresses...
Proceedings Papers

ITSC 2005, Thermal Spray 2005: Proceedings from the International Thermal Spray Conference, 90-99, May 2–4, 2005,
... incompatibility troubles. In all the samples, the top coating consisted of plasma-sprayed fine alumina powders, to achieve low porosity and confer adequate chemical resistance, while mullite was used to match the low thermal expansion coefficient of the porous refractory substrates. The coatings were...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 829-835, May 8–11, 2000,
... Abstract Stoichiometric cordierite (2MgO-2Al2O3-5SiO2) with additions of titania have been investigated for use as coatings on low thermal expansion refractory concretes. These concretes have coefficients of thermal expansion on the order of 2 ppm/°C. Titania additions of up to 8 mole percent...
Proceedings Papers

ITSC 2011, Thermal Spray 2011: Proceedings from the International Thermal Spray Conference, 930-933, September 27–29, 2011,
... is the coefficient of thermal expansion (CTE). It is evident that the CTE has an important influence on the stress state. The stress state is shown at the bottom of Fig.3. Compressive stresses are located in the valley of the sinusoidal interface while tensile stresses are located in the peak position. The stress...
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ITSC 2007, Thermal Spray 2007: Proceedings from the International Thermal Spray Conference, 513-517, May 14–16, 2007,
... the substrate. The main reason is that the coefficient of thermal expansion (CTE) of coating (9.2×10-6/K) is not matched with the CTE of substrate (18×10-6/K). Consequently, the next step is to reduce the coating thermal stress. References 1. M. Nakagawa, J. Sakai, T. Ohkouchi, and H. Ohkoshi, Corrosion...
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ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1179-1183, May 8–11, 2000,
... by atmospheric plasma spray process. Various mechanical and thermal properties were measured including wear, coefficient of thermal expansion, thermal conductivity, and microhardness. The results show the potential use of CeSZ in wear sensitive applications in diesel applications. Keywords: Thermal Barrier...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 363-369, May 8–11, 2000,
... Abstract Thermally sprayed coating characteristics and mechanical properties are in part a result of the residual stress developed during the fabrication process. The total stress state in a coating/substrate is comprised of the quench stress and the coefficient of thermal expansion (CTE...
Proceedings Papers

ITSC 2011, Thermal Spray 2011: Proceedings from the International Thermal Spray Conference, 1203-1206, September 27–29, 2011,
... thermal-expansion coefficient's difference between the metallic substrate and the YSZ coatings, the residual thermal stress causes the coating partially or completely separated from the substrate during the cooling process. This separation failure always happens in the interface of bond coatings and top...
Proceedings Papers

ITSC 2003, Thermal Spray 2003: Proceedings from the International Thermal Spray Conference, 1625-1630, May 5–8, 2003,
.... Current EBC systems employ multiple layers, each serving unique requirements. However, any mismatch in the coefficients of thermal expansion (CTE) leads to internal stress and results in crack formation. In this case, oxygen and water vapor penetrate through the EBC, reducing the lifetime of the component...
Proceedings Papers

ITSC 2008, Thermal Spray 2008: Proceedings from the International Thermal Spray Conference, 94-97, June 2–4, 2008,
... requirements for adherence, cracking and thermal expansion matching. However, a main advantage of glass seals is that the glass composition can be tailored to optimize physical properties [6,7]. To go beyond the stress caused by the difference in thermal expansion coefficient, fiberreinforced glass seals...
Proceedings Papers

ITSC 2008, Thermal Spray 2008: Proceedings from the International Thermal Spray Conference, 767-772, June 2–4, 2008,
... low thermal conductivity, high thermal expansion coefficient and good corrosion resistance. However as a new candidate commercial TBC material, ceria stabilized zirconia (CSZ) currently looks to be promising. Ceria and ceria based ceramics show an outstanding potential for use at temperatures...
Proceedings Papers

ITSC 2008, Thermal Spray 2008: Proceedings from the International Thermal Spray Conference, 1375-1380, June 2–4, 2008,
... Abstract Invar alloy (Fe – 36%Ni) is used in industrial applications which require high dimensional stability because of its exceptionally low thermal expansion coefficient. Purpose of this work is to enhance the performance of molds for the production of carbon fiber reinforced plastic (CFRP...
Proceedings Papers

ITSC 2007, Thermal Spray 2007: Proceedings from the International Thermal Spray Conference, 389-392, May 14–16, 2007,
... and (c) CT7. 390 Bending Strength (MPa) Young's Modulus (GPa) The residual stress is closely related to the thermal expansion coefficient matching condition of the coatings and substrates. The dissimilarity of the thermal expansion coefficient between the coating and substrate induces the residual stress...
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ITSC 2006, Thermal Spray 2006: Proceedings from the International Thermal Spray Conference, 489-494, May 15–18, 2006,
... of thermal barrier coating (TBC) based on metal-glass composite (MGC) has been presented which provides the possibility to easily adjust its thermal expansion coefficient to match the substrate by changing the metal to glass ratio of the composite. Combined with the ductility of the glassy phase at elevated...
Proceedings Papers

ITSC 2007, Thermal Spray 2007: Proceedings from the International Thermal Spray Conference, 507-512, May 14–16, 2007,
... Abstract The physico-chemical and thermo-mechanical properties of aluminosilicate ceramics (high melting point, low thermal expansion coefficient, excellent thermal shock resistance, low density and good corrosion resistance) make this class of materials a good option for high temperature...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 21-28, October 7–11, 1996,
... the modification in substrate boiler tube materials (microstructure and mechanical properties) associated with the coating of advanced NiCrBSi alloys. Charpy impact, tensile strength, yield strength, elongation and thermal expansion coefficient testing between 22°C and 450°C are measured. By optimal coating design...