61 Citations. Explore all metrics. Abstract. The high-entropy rare-earth zirconate ( (La 0.2 Nd 0.2 Sm 0.2 Gd 0.2 Yb 0.2) 2 Zr 2 O 7, 5RE 2 Zr 2 O 7 HEREZs) …

A 2 W 3 O 12-type (A=La, Sm, Eu, Gd, RE) rare earth tungstate high-entropy ceramic powder with a positively charged surface was fabricated by a high-temperature solid-phase method, and its antibacterial and antiviral properties were evaluated for the first time.Changes in the antibacterial and antiviral activity and ionic solubility of these …

Compared with single-component RE 2 Si 2 O 7, three- and five-component rare earth disilicates ceramics, RE 3+ (RE= Lu, Yb, Y, Ho, Er, Sc, Dy and Tb) in (8RE 1/8) 2 Si 2 O 7 are randomly distributed on the lattice. The difference in atomic masses and radii of the eight RE elements in the lattice led to the increase of M and R, which will ...

Journal of the American Ceramic Society (JACerS) is a leading ceramics journal publishing research across the field of ceramic and glass science and engineering. Abstract Rare-earth orthoferrites with weak ferromagnetism have become one of the most fascinating topics in antiferromagnet research because of their potential application in …

A new high entropy rare earth disilicate ceramic (Lu1/8Yb1/8Sc1/8Er1/8Y1/8Ho1/8Dy1/8Tb1/8)2Si2O7: High temperature corrosion of …

The rare earth metals, specifically the lanthanides, produce vibrant candy-like colors in ceramic glazes. Well, if you liked what you saw in that article, but you don't fire to cone 9 or 10, you will love today's post. In this excerpt from the Technofile in the Ceramics Monthly archive, Ryan Coppage, PhD gives the low down on rare earth ...

The high-entropy rare-earth zirconate ((La 0.2 Nd 0.2 Sm 0.2 Gd 0.2 Yb 0.2 ) 2 Zr 2 O 7, 5RE 2 Zr 2 O 7 HEREZs) ceramics were successfully prepared by a new high-speed positive grinding strategy ...

In this study, novel high-entropy rare-earth iron garnet ceramics (Gd 0.2 Dy 0.2 Er 0.2 Y 0.2 RE 0.2) 3 Fe 5 O 12 (RE = Sm, Eu, Tm, Yb) were synthesised using a solid-phase method and their magnetic properties were evaluated. 2. Experimental procedure2.1. Preparation of high-entropy ceramics.

Journal of the American Ceramic Society (JACerS) is a leading ceramics journal publishing research across the field of ceramic and glass science and engineering. Abstract High-performance colossal-permittivity (CP) materials have huge potential applications in the miniaturization of electronic components and high-energy storage …

The high-entropy rare-earth zirconate ((La0.2Nd0.2Sm0.2Gd0.2Yb0.2)2Zr2O7, 5RE2Zr2O7 HEREZs) ceramics were successfully prepared by a new high-speed positive grinding strategy combined with solid-state reaction method. The microstructure, crystal structure, phase composition, and …

See Full PDFDownload PDF. —Barium titanate (BaTiO 3) doped with rare-earth elements (REE) is used as dielectric in the manufacture of multilayer ceramic capacitors (MLCCs). The most common REE oxide employed as dopant for this application is Y 2 O 3. The behavior of the Y 3+ in the BaTiO 3 structure depends on its concentration and the ...

Journal of the American Ceramic Society (JACerS) is a leading ceramics journal publishing research across the field of ceramic and glass science and engineering. Abstract To improve the ability of rare-earth (RE) silicates to resist molten calcium–magnesium–aluminosilicate (CMAS) at high temperature, a novel high-entropy …

In this study, high-entropy rare-earth tantalate ceramics (Y 0.2 Ce 0.2 Sm 0.2 Gd 0.2 Dy 0.2)TaO 4 ((5RE 0.2)TaO 4) have been successfully fabricated.The possibility of formation of (5RE 0.2)TaO 4 was verified via first-principles calculations. In addition, the phase structure, ferroelastic toughening mechanism, thermophysical, and …

The rare-earth oxides settle quickly in the glaze bucket and require the use of bentonite or CMC gum in the glaze. They're refractory and aren't toxic. They're quite weak colorants and 5–10% can be added to a glaze. They're best used in alkaline glazes (which increase their solubility) on porcelain. *Note: Glazes containing barium ...

In this study, high‐entropy rare‐earth tantalate ceramics (Y0.2Ce0.2Sm0.2Gd0.2Dy0.2)TaO4 ( (5RE0.2)TaO4) have been successfully fabricated. The possibility of formation of (5RE0.2)TaO4 was ...

The addition of rare earth element yttrium played an important role in the improvement of both mechanical properties and wear resistance of Al 2 O 3 /(W,Ti)C ceramic cutting tool material. Mechanical properties especially the fracture toughness and flexural strength were obviously increased when a suitable amount of the yttrium were …

rare-Earth ions are necessary for knowledge about optical glasses, glass-ceramics and ceramics. These aspects are presented and discussed in this Special Issue, belonging to the

Previous studies suggested that for rare-earth zirconate (5RE 0.2) 2 Zr 2 O 7, the ratio of rare-earth site to Zr site cation radius determines whether it can form pyrochlore phase, fluorite structure, or the coexistence of both [22].It can be seen from Table 1. that the radius ratio of the cation RE 3+ to Zr 4+ (r ratio = r(RE 3+)/r(Zr 4+) of all …

Xenotime deposits (xenotime is a rare earth phosphate mineral which is a rich source of yttrium and heavy rare earths) in Madhya Pradesh, carbonatite-alkaline complex in Ambadongar, Gujarat, polymetallic mineralization in Siwana Ring Complex, Rajasthan (Banerjee et al., 2014) are some of the promising areas for REE exploration and …

Yttria is a rare-earth ceramic. Also called yttrium oxide, it is the only oxide with such strong thermal stability and is plasma resistant. It can also be made translucent. Like our other ceramic materials, the Yttria proposed …

We highlight that the TEC of these high-entropy rare-earth zirconate ceramics increases with the decrease of electronegativity difference, and the thermal …

Analysis techniques such as SEM, TEM and EDAX were used to investigate the microstructure of rare earth reinforced Al 2 O 3 / (W, Ti)C ceramic composite. Chemical and physical compatibility of the composite was analyzed and interfacial microstructure was studied in detail. It is found that both Al 2 O 3 and (W, Ti)C phases are interlaced with ...

Cerium oxide (CeO 2) in the range of 0–16 mol.% is used to enhance the joint of Ag-based filler for brazing yttria-stabilized zirconia (YSZ) ceramic in the air. Ag–CeO 2 filler is first adopted to braze YSZ ceramic (3 mol.% yttria). The CeO 2 is found to cluster at the interface of YSZ and Ag seam, improving the wetting behavior of Ag-based ...

These characteristics greatly expand the application scope of Al2O3 and Si3N4 ceramics'"-"' . 2.2 Application of rare earth oxides in non-oxide ceramics Rare earth oxides, such as Y203, CeO2, La203, and Nd203, are the main rare earth oxides used in non-oxide ceramics, playing roles of sintering aid to This is the background …

A new series of rare-earth-cerate high-entropy ceramics with compositions of (La 0.2 Nd 0.2 Sm 0.2 Gd 0.2 Dy 0.2) 2 Ce 2 O 7 (HEC1), (La 0.2 Nd 0.2 Sm 0.2 Gd …

A series of rare-earth zirconate Ln2Zr2O7 ceramics (Ln=Dy, Er, and Yb) with a fluorite structure (F-Ln2Zr2O7) were prepared by pressureless sintering from zirconia and rare-earth oxide powders at 1600°C for 10 h in air. The microstructure experiments were performed by X-ray diffractometry (XRD) and scanning electron microscopy (SEM). The …

Applications of rare earth–doped SnO 2 nanostructures and rare earth stannate (Re 2 Sn 2 O 7) ceramic nanomaterials 9.3.1. Nanosensor. A nanosensor is a device with the ability to transmit information and data on the properties and features of nanostructures from macroscopic size to nanoscale.

The inclusion of rare-earth elements, by allowing to combine photorefractive and active properties, may provide an effective route to the simple fabrication of integrated optics amplifiers and lasers. In this context we recently fabricated SiO 2 –SnO 2 glass–ceramic waveguides doped with 1 mol% of Eu 3+ with SnO 2 content as high as …

Rare earth zirconate ceramic materials with the chemical formula Re 2 (or Ln 2) Zr 2 O 7, (where Re (Ln) is a lanthanide element or trivalent rare earth, (Dy, Gd, Nd, and La)) are a kind of ceramic materials with a generic pyrochlore structure.Recently, complex oxide structures with the chemical formula A 2 M 2 O 7, which can be in pyrochlore …

Lanthanide cerates (Ln 2 Ce 2 O 7) Lanthanide cerate is known as a solid solution of lanthanide oxide in cerium dioxide with defective fluorite structure (Cao et al., 2003 ). Lanthanide cerate ceramic systems with fluorite structure have attracted the attention of many researchers owing to their special electrical, catalytic, and mechanical ...