Description

Macor is a high-performance, machinable glass-ceramic material renowned for its exceptional electrical insulation, thermal stability, and vacuum integrity. Its unique combination of properties makes it an indispensable engineering solution where conventional metals, plastics, or ceramics fall short. This material is critical for manufacturers and R&D facilities in the aerospace, semiconductor, medical device, and high-energy physics sectors requiring reliable performance in extreme environments.

Application

• Semiconductor Fabrication: Used for wafer processing components, insulators, and plasma etch chambers due to its ultra-high vacuum compatibility and low particulate generation.
• Aerospace & Defense: Ideal for radar and microwave tube components, missile guidance systems, and structural insulators where thermal shock resistance and dimensional stability are paramount.
• Medical & Life Sciences: Employed in MRI equipment, surgical laser components, and sterilization trays because of its biocompatibility, non-porosity, and ability to withstand repeated autoclaving.
• High-Voltage/High-Temperature Engineering: Serves as a robust insulator and structural support in electrical feedthroughs, furnace components, and laser housings.
• Precision Machining & Prototyping: Valued for its ability to be machined to tight tolerances with standard metalworking tools, making it perfect for custom fixtures, gauges, and prototypes.
• Scientific Research Equipment: Used in particle accelerators, cryogenic systems, and analytical instrument components requiring a combination of electrical insulation and thermal management.

Basic Information

Product Name	Macor
CAS No.	85422-94-2
Molecular Formula	Complex glass-ceramic (Primarily SiO₂, MgO, Al₂O₃, K₂O, B₂O₃, F)
Molecular Weight	N/A (Composite material)
Synonyms	Machinable Glass Ceramic; MACOR® (Corning); Glass-Ceramic Composite; Fluorophlogopite Mica Glass-Ceramic; White Macor; Macor Machinable Ceramic; Corning Code 9658; Engineered Glass-Ceramic
EINECS	Contact for details

Quality Control

Every batch of Macor is manufactured under stringent process controls to ensure consistent mechanical, thermal, and electrical properties. We adhere to the original manufacturer's rigorous specifications, with quality verified through comprehensive testing including dimensional accuracy, dielectric strength, thermal expansion coefficient, and chemical durability. A Certificate of Conformance (CoC) detailing lot-specific properties is provided with each shipment, and material traceability is maintained throughout the supply chain.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids/organic solvents and fluoride/strong alkali to prevent surface etching. Although not hygroscopic, prolonged exposure to high humidity should be avoided to maintain optimal surface quality for bonding or metallization processes.

Specification

Item	Specification
Appearance	White, homogeneous solid
Density	2.52 g/cm³
Flexural Strength	≥ 94 MPa
Compressive Strength	≥ 345 MPa
Thermal Expansion Coefficient (25-300°C)	9.3 x 10⁻⁶/°C
Maximum Use Temperature	800°C (Continuous), 1000°C (Peak)
Dielectric Strength	≥ 40 kV/mm
Volume Resistivity (25°C)	≥ 10¹⁴ ω·cm
Dielectric Constant (1 MHz, 25°C)	5.9 - 6.1
Water Absorption	0%

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