CeramicsTimes' yttria ceramics mainly include high-purity yttria ceramics and 99.7 yttria ceramics. They have excellent biological stability, strong wear resistance, good corrosion resistance, and good aesthetic effects. They can achieve different effects and performances in various fields.

CeramicsTimes' yttria ceramics can be isostatically pressed. Yttria targets, high-purity yttria disks 99.9%, yttria large round plates, 97%, powder purity 99.99% and 99%, ceramic disks with diameters of 100~800mm and thicknesses of 10~40mm have been used by domestic and foreign customers and play an increasingly important role in the semiconductor and high-tech material segments.

CeramicsTimes' yttria ceramics have a polishing roughness of Ra0.02 and a machining accuracy of ±0.001mm. CeramicsTimes has a super expert R&D team composed of professors and doctors. The experts study: nitrides, oxides, carbides and other advanced ceramic materials and composite ceramics; and apply for more than 30 Chinese patents. It can be customized according to drawings, and the products are widely sold to more than 50 countries and regions around the world.

Product name	High purity yttrium oxide ceramics
Material	yttrium oxide
Color And Size	Customize
Packaging	Carton / Pallet (According to client requirement )
Delivery time	7-30 days
Items Design	According to the client's drawing or samples
Features	Good quality, low price, Multiple factories, deliver to you based on the one closest to your location

Powder properties

		analysis project	unit	Physical property value (example)	Exam Preparation
Raw materials	Average particle size	D50%	μm	0.4～0.6
	Specific surface area	-	m2/g	5～7	BET Method
Pellets	Purity	Y2O3/TREO	%	>99.9
	Impurities	Fe2O3	ppm	<50	ICP
		CaO		<10	ICP
	Average particle size	D50%	μm	35～50
	Density	High Density	g/cm3	1.2～1.3	Static method JISK5101
		Tap Density		1.3～1.4
Molded body	Molding density	R.D.	%	>50	Molding pressure: 1tf/cm2 True density: 5.03g/cm3
Sintered body	Sintered body density	R.D.	%	>98	Firing conditions：1,650℃×2hr. Archimedes method
	Shrinkage rate	-	%	<20

Particle characteristics

Particle characteristics 1

Particle SEM photo

Particle characteristics 2

Primary particle SEM photo

Thermal properties (TG-DTA)

Granule curve

Color tone photographs of each heat-treated sintered body

Heat treatment: None
Color: Light yellow
(Grinding surface: White)

Heat treatment gas: N2
Heat treatment temperature: 1600℃
Color: White

Heat treatment gas: H2
Heat treatment temperature: 1600℃
Color: White

Heat treatment atmosphere: H2
Heat treatment temperature: 1700℃
Color: Black (black spots appear

Main Performance Characteristics

Exceptionally high corrosion resistance: It exhibits excellent chemical inertness towards most metal melts, especially reactive metals such as titanium, zirconium, hafnium, tantalum and their alloys, rare earth metals, plutonium, uranium, etc., and is hardly eroded. It also has outstanding resistance to corrosion from halide melts such as fluorides and chlorides.
Outstanding high-temperature stability: With a melting point as high as 2430°C, it can maintain structural stability in high-temperature environments (typically above 1800°C) under vacuum or inert atmosphere conditions, and is not prone to volatilization, decomposition or phase transformation.
Good thermal shock stability: With a low coefficient of thermal expansion and moderate thermal conductivity, it can withstand a certain degree of thermal shock (sudden temperature changes).
Outstanding electrical insulation: It can maintain good electrical insulation performance even at high temperatures.
High purity and low contamination: After sintering, the structure is dense, the surface is smooth, and it is not prone to react with the processed materials, avoiding the introduction of impurities and contamination. It is especially suitable for the preparation of high-purity materials.
Lower sintering activity: Pure yttria has an extremely high sintering temperature, and it is often necessary to use doping or special processes such as ultrafine powder or hot-pressing sintering to obtain high-density products. This also reflects the technical capabilities of yttria ceramic manufacturers.

Main uses

Semiconductor industry: Used in metal-organic chemical vapor deposition (MOCVD) equipment, as a carrier (Susceptor) or inner lining of the reaction chamber for growing semiconductor films such as gallium nitride (GaN) and gallium arsenide (GaAs), due to its high purity and high-temperature resistance. Yttrium oxide ceramic discs are often used as key bases or trays in such equipment.
High-end Metallurgy and Crystal Growth:Yttria ceramic parts such as crucibles, flow guides, and protective sleeves for the smelting and casting of active metals (titanium, zirconium, etc.) and their alloys.Crucibles or insulation components for the growth of sapphire single crystals, laser crystals, scintillation crystals, etc.Purification and smelting of rare earth metals.
Aerospace and nuclear industries: used for manufacturing components that can withstand extremely high temperatures and radiation environments, or as container materials for nuclear fuel-related processing.
In the field of scientific research, it is used as a heating element support, furnace lining, heat shield or sample crucible in high-temperature furnaces (such as induction furnaces, vacuum sintering furnaces), for ultra-high temperature experiments and new material synthesis.
Wear-resistant and corrosion-resistant components: Used as mechanical seal rings, bearings or wear-resistant linings in specific corrosive media or high-temperature wear environments. Choosing the right yttria ceramic manufacturer is crucial for obtaining yttria ceramic rings or other yttria ceramic parts that meet specific performance requirements.

Products Description

Performance	unit	Yttrium Oxide(Y2O3)
Density	g/cm3	＞4.95
Flexural strength	MPa	＞130
Dielectric constant	/	11
Vicker's Hardness	GPa	6.0
Volume resistivity	Ω·cm(20℃)	＞10 12
Young's Modulus	GPa	150-200
Coefficient of thermal expansion	×10-6/k(RT-800℃)	7.5
Thermal conductivity	W/m×k(25℃)	14
Specific Heat Capacity	J/g·K	0.45
Insulation strength	kv/mm	11
Dielectric loss factor	×10-6	55