Description

Hafnium Oxide CAS NO 71243-80-6 is a high-purity, refractory ceramic material prized for its exceptional thermal stability and high dielectric constant. This compound is critical for advanced manufacturing where material performance under extreme conditions is non-negotiable. It is an essential raw material for industries including electronics, aerospace, and nuclear technology, where it serves as a key component in optical coatings, gate dielectrics, and refractory ceramics.

Application

• High-k Gate Dielectrics: A vital material in semiconductor fabrication for next-generation transistors, enabling continued device miniaturization.
• Optical Coatings: Used in multi-layer anti-reflective and protective coatings for lenses, laser components, and thermal barrier systems due to its high refractive index and durability.
• Refractory Ceramics: Serves as a crucible material and furnace lining component for high-temperature metallurgical processes.
• Nuclear Reactor Control Rods: Utilized for its high neutron absorption cross-section, making it effective in regulating nuclear fission reactions.
• Catalyst and Catalyst Support: Employed in specialized chemical synthesis and petroleum refining processes.
• Solid Electrolytes: Investigated for use in fuel cells and oxygen sensors due to its ionic conductivity properties at elevated temperatures.

Basic Information

Product Name	Hafnium Oxide
CAS No.	71243-80-6
Molecular Formula	HfO₂
Molecular Weight	210.49 g/mol
Synonyms	Hafnia; Hafnium(IV) oxide; Hafnium dioxide; Hafnium sesquioxide; HfO₂; Ceramic Hafnium Oxide; High-purity Hafnium Oxide
EINECS	Contact for details

Quality Control

Our Hafnium Oxide is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. We provide comprehensive quality assurance, with Certificates of Analysis (COA) available for every shipment, detailing key parameters such as assay, metallic impurities, and particle size distribution. Our production adheres to relevant industry standards, and we can support requirements for ISO, REACH, and other regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep the container sealed to prevent moisture absorption and contamination from airborne particulates. Separate from strong acids and strong bases.

Specification

Item	Specification
Appearance	White to off-white powder
Assay (HfO₂)	≥ 99.9%
Zirconium (Zr)	≤ 2.0%
Loss on Ignition (LOI)	≤ 1.0%
Particle Size (D50)	Customizable (e.g., 0.5 - 5.0 µm)
Specific Surface Area (BET)	Contact for details
Trace Metals (ICP-MS)	≤ 10 ppm each

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.