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thermal expansion

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Proceedings Papers

ITSC 2009, Thermal Spray 2009: Proceedings from the International Thermal Spray Conference, 18-22, May 4–7, 2009,
... Abstract This paper presents a method, based on push-rod type thermomechanical analysis, for determining the thermal expansion behavior of thermal barrier coatings (TBCs). It shows that TMA measurements can provide accurate CTEs for yttria-stabilized zirconia layers as thin as 0.3 mm with good...
Proceedings Papers

ITSC 2009, Thermal Spray 2009: Proceedings from the International Thermal Spray Conference, 1112-1116, May 4–7, 2009,
... Abstract This work investigates some of the unique properties that can be achieved by combining materials with positive and negative thermal expansion coefficients. In the experiments, different mixtures of MCrAlY, WO 3 , and Y 2 O 3 powders are deposited on stainless steel substrates by laser...
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

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1067-1070, May 8–11, 2000,
... Abstract For utilization of free-standing ceramic parts produced by plasma spraying it is very important to know the temperature dependence of the linear thermal expansion coefficient and its relation to the porosity of the structure. Zircon ZrSiO4 and gray alumina (96 wt % AI2O3) were plasma...
Proceedings Papers

ITSC 2001, Thermal Spray 2001: Proceedings from the International Thermal Spray Conference, 683-689, May 28–30, 2001,
... Abstract Cored wires expand the spectrum of coating materials, that can be processed from wire feedstock. In particular they allow to provide a custom-made alloy composition. For many industrial applications a low thermal expansion coefficient is desirable to adapt the expansion behavior...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 1601-1606, May 25–29, 1998,
... Abstract The coefficient of thermal expansion (CTE) of a NiCoCrAlY coating was investigated in this work. The CTE was inferred from the measured length variations of coated prismatic symmetric specimens (i.e. having the coating on two opposite surfaces) at various temperature increments...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 1629-1634, May 25–29, 1998,
... Abstract The thermal expansion characteristics of plasma-sprayed coatings were investigated. The thermal expansion measurements were carried out up to 1200°C on thick coatings that were substrate free. The effects on the thermal expansion coefficients were studied in terms of composition...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 371-375, May 8–11, 2000,
... of structure is proposed for superconducting cavities in order to reduce the cavity frequency shift due to Lorentz forces. Since the superconducting cavity works at liquid helium temperature (below 4 K) and the niobium thermal expansion ratio is very different from the thermal expansion ratio of copper...
Proceedings Papers

ITSC 2010, Thermal Spray 2010: Proceedings from the International Thermal Spray Conference, 55-59, May 3–5, 2010,
... a significant reduction of drag losses, but are quite sensitive on pollution. Therefore, for a good performance, it is essential to combine these structures with self-cleaning properties. A lateral- and depth-selective distribution of particles with a negative thermal expansion coefficient (NTE) in a binder...
Proceedings Papers

ITSC 2005, Thermal Spray 2005: Proceedings from the International Thermal Spray Conference, 1119, May 2–4, 2005,
... that the continuous change of the coefficients of thermal expansion and thermal conductivity in the transition layer leads to a excellent thermal shock resistance of the totally 0.9mm thick TBCs. The thermal shock cycles of the specimens which underwent heating by oxygen-acetylene to 1200 C and then quenching...
Proceedings Papers

ITSC 2011, Thermal Spray 2011: Proceedings from the International Thermal Spray Conference, 944-948, September 27–29, 2011,
... thermal expansion coefficient were investigated by laser-flash method and pushing-rod method respectively. XRD results revealed that LZ7C3 is a mixture of pyrochlore and fluorite, and the pyrochlore is the main phase which is a small solid solution of La 2 Ce 2 O 7 (LC) in La 2 Zr 2 O 7 (LZ...
Proceedings Papers

ITSC 2008, Thermal Spray 2008: Proceedings from the International Thermal Spray Conference, 1132-1137, June 2–4, 2008,
... Abstract Increasing requirements on technical components for high-temperature-applications (e.g., turbine blades) demand for new developments in surface engineering. The selective combination of materials with positive and negative thermal expansion coefficients (NTE) will lead to a reversible...
Proceedings Papers

ITSC 2007, Thermal Spray 2007: Proceedings from the International Thermal Spray Conference, 567-571, May 14–16, 2007,
... the substrate with smaller thermal expansion similar to the MoB/CoCr coatings. This paper describes the solution to prepare the MoB/CoCr coating without damage onto austenitic stainless steel of AISI316L with larger thermal expansion, whose material is commonly utilized for the hot continuous dipping rolls...
Proceedings Papers

ITSC2012, Thermal Spray 2012: Proceedings from the International Thermal Spray Conference, 639-645, May 21–24, 2012,
... Abstract Microstructure of cermet support influences significantly the performance and stability of solid oxide fuel cells (SOFCs). The properties required for the support include high electrical conductivity, necessary permeability, good match of thermal expansion with other layers and high...
Proceedings Papers

ITSC1999, Thermal Spray 1999: Proceedings from the United Thermal Spray Conference, 740-746, March 17–19, 1999,
... Abstract This paper aims to clarify the thermal and mechanical properties of zirconium dioxide-cerium(IV) oxide-yttrium oxide and zirconium dioxide-yttrium oxide plasma sprayed coatings. such as phase transformation, bond coat oxidation, and thermal expansion mismatch. Both coatings showed a 7...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 225-229, May 25–29, 1998,
... to facilitate the bond strength between the top ceramic layer and the substrate. But, the coated layers can be peeled off because of the accumulation of the thermal stress by the difference of the thermal expansion coefficient between metal and ceramics in a heat cyclic environment. In this study...
Proceedings Papers

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

ITSC 2005, Thermal Spray 2005: Proceedings from the International Thermal Spray Conference, 1406-1409, May 2–4, 2005,
... that the continuous change of the coefficients of thermal expansion and thermal conductivity in the transition layer leads to a excellent thermal shock resistance of the totally 0.9mm thick TBCs. The thermal shock cycles of the specimens which underwent heating by oxygen-acetylene flam to 1200 and then quenching...
Proceedings Papers

ITSC 2005, Thermal Spray 2005: Proceedings from the International Thermal Spray Conference, 42-45, May 2–4, 2005,
... that coating properties such as conductivity, thermal expansion, porosity and surface roughness can be well directed influenced by controlling the mixture of the powder material, the pretreatment of the powder and particle size distribution. aging bond strength electrical resistance glass-composite...
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...