Ceramic composite systems and method

Patent metadata

Field	Value
Publication number	US-10023795-B2
Application number	US-201615003054-A
Country	US
Kind code	B2
Filing date	Jan 21, 2016
Priority date	Jan 21, 2015
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

Embodiments of the invention provide a ceramic composites and synthesis methods that include providing a plurality of nanoparticles with at least one first rare-earth single-crystal compound, and mixing the plurality of nanoparticles with at least one ceramic material and at least one ceramic binder including at least one solvent. The method further includes preparing a ceramic green-body from the mixture, and sintering the ceramic green-body to form a ceramic composite of a polycrystalline ceramic with a plurality of embedded single-crystal nanorods. The embedded single-crystal nanorods include at least one second rare-earth single crystal compound. The at least one second rare-earth single crystal compound can include or be derived from the at least one first rare-earth single crystal compound.

First claim

The invention claimed is:

1. A ceramic composite synthesis method comprising:
providing a plurality of nanoparticles comprising at least one first rare-earth single-crystal compound;
mixing the plurality of nanoparticles with at least one ceramic material and at least one organic binder including at least one solvent;
preparing a ceramic green-body from the mixture; and
sintering the ceramic green-body to form a ceramic composite, the ceramic composite comprising a polycrystalline ceramic with a plurality of embedded single-crystal nanorods, the embedded single-crystal nanorods comprising at least one second rare-earth single crystal compound; and
wherein the at least one first rare-earth single-crystal compound comprises erbium silicate.

2. A ceramic composite synthesis method comprising:
providing a plurality of nanoparticles comprising at least one first rare-earth single-crystal compound;
mixing the plurality of nanoparticles with at least one ceramic material and at least one organic binder including at least one solvent;
preparing a ceramic green-body from the mixture; and
sintering the ceramic green-body to form a ceramic composite, the ceramic composite comprising a polycrystalline ceramic with a plurality of embedded single-crystal nanorods, the embedded single-crystal nanorods comprising at least one second rare-earth single crystal compound; and
wherein the at least one first rare-earth single-crystal compound comprises single crystal erbium chloride and the ceramic composite is an alloy with yttrium (Y) chloride silicate (CS) wherein the at least one second rare-earth single crystal compound comprises Er x Y 1-x CS formed in-situ, where x is 0 to 1.

Assignees

• Univ Arizona State

Inventors

• Ning Cun-Zheng

Classifications

• C04B2235/3208

  Calcium oxide or oxide-forming salts thereof, e.g. lime · CPC title

• C04B35/76

  Fibres, filaments, whiskers, platelets, or the like · CPC title

• C04B35/443

  Magnesium aluminate spinel · CPC title

• C04B35/553

  based on fluorides · CPC title

• C04B2235/5276

  Whiskers, spindles, needles or pins · CPC title