In order to apply high-Tc material to a real accelerator cavity, it may be indispensable that the material is deposited on metal substrate. It is now possible to align the c axis of YBa2Cu3Oy (YBCO) film perpendicular to a metal surface. Furthermore, the constituent crystals can be in-plane aligned with a laser ablation technique following the formation of yttria-stabilized-zirconia (YSZ) buffe...

Time-domain spectroscopy (TDS) in the terahertz (THz) frequency range is gaining importance nondestructive testing of dielectric materials. One application layer thickness measurement a coating layer. To determine from data, refractive index must be known surveyed range. For perpendicular incidence radiation, methods exist to extract data themselves without prior knowledge. This paper extends t...

Owing to its high penetrability with dielectric materials, terahertz time domain spectroscopy (THz-TDS) is a promising nondestructive measurement technology. The coating thickness deviation and defect of thermal barrier coatings (TBC) will affect insulation performance lifetime. In this work, THz-TDS was applied measure the distribution TBC. refractive index obtained by transmission mode. To av...

Abstract This study investigates the optimal conditions to deposit a thermal barrier coating using micro- and nanopowders in air plasma spraying (APS) process. The influence of APS process parameters on thickness, porosity hardness yttria-stabilized zirconia (YSZ; ZrO 2 × 8Y O 3 ) coatings deposited with single-electrode gun was determined. temperature velocity melted particles were determined ...

• Initial coatings improve the microstructure of surrogate fuel elements. coating thickness is crucial in tuning microstructure. Potential for elements with greater than 60 vol.% fissile exists. Higher fractions would result improved efficiency and decreased weight. Nuclear thermal propulsion (NTP), which may utilize cermet fuels, shows promise improving feasibility long-distance space travel. ...

This study investigated the feasibility of depositing graphene nanoplatelet (GNP)-reinforced yttria-stabilized zirconia (YSZ) composite coatings. The coatings were deposited from an ethanol-based mixed YSZ and GNP suspension using plasma spraying (SPS). Raman spectroscopy confirmed presence GNPs in matrix, scanning electron microscopy (SEM) analysis revealed a desired columnar microstructure wi...

This paper describes the fabrication and investigation of morphologically stable model electrode structures with well-defined and sharp platinum/yttria-stabilized zirconia YSZ interfaces to study geometric effects at triple phase boundaries TPBs . A nanosphere patterning technique using monodispersed silica nanoparticles, which are applied to the YSZ surface by the Langmuir– Blodgett method, is...

Abstract For more than 6 decades, thermal barrier coatings have been used to protect structural parts in both stationary and aviation gas turbines. These allow the use of significant higher operation temperatures hence increased efficiencies. In 1970s, yttria-stabilized zirconia (YSZ) was identified as outstanding material for this application. As major deposition technologies electron beam phy...

Yttria-stabilized zirconia (YSZ) is the best known ceramic-oxide material employed as a component of either solid electrolyte or anode cermet material for intermediate solid oxide fuel cell (IT SOFC). The properties of traditionally produced (by mechanical mixing of oxides) Al2O3/3YSZ composite with the same composition materials obtained by citrate and impregnation methods and with properties ...