Transparent Spinel Sheet

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Transparent Ceramic

Catalog No.	CM4062
Material	Spinel (MgAl2O4)
Crystal System	Cubic
Density	3.57-3.58 g/cm3
Size	Customized

Transparent spinel (Magnesium aluminum transparent ceramics) has many applications in optics, electronics and structure. Stanford Advanced Materials (SAM) is a professional manufacturer of transparent ceramic products. We provide custom machined transparent ceramic products to exact customer specifications. Our products are sold all over the country, and exported to Germany, Spain, Japan and Korea. Besides, we have strict management and advanced production technology. Feel free to contact us for customized products.

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Description

Specification

Transparent Spinel Sheet Descriptions:

Transparent spinel (Magnesium aluminum transparent ceramics) has many applications in optics, electronics and structure.

Transparent spinel can be used to prepare visible to mid infrared windows and lenses. The theoretical transmittance of 3~5μm is close to 87%, which is close to ALON and sapphire, and the cutoff wavelength is slightly longer than both, especially in the mid-infrared imaging system performance.

The properties of transparent ceramic spinel and alumina are similar. It’s suitable for various circuit components such as thick film circuit, thin film circuit, integrated circuit carrier and chip packaging and other high-performance substrate materials.

Transparent Spinel Sheet Specifications:

Item			Unit	Typical Values
Molecular Formula			-	MgAl₂O₄
Crystal System			-	Cubic
Density			g/cm³	3.57-3.58
Physical Properties
Mohs Hardness			-	8.5
Vickers Hardness			N/mm²	>1.26 x 10⁴
Modulus of Elasticity			Gpa	275
Flexural Strength			MPa	140-200
Compressive Strength			MPa	>500
DC Breakdown Strength			Kv/mm	34.5
Refractive Index
486.1nm	1.72433	2.2um			1.6848
546.1nm	1.71976	3.0um			1.6678
589.3nm	1.71611	4.0um			1.6387
The Thermodynamic Property
Melting Point			ºC	2135
Thermal Conductivity at 20℃			W/m•k	17.0
Thermal Conductivity at 100℃			W/m•k	16.4
Thermal Conductivity at 200℃			W/m•k	15.7
Thermal Conductivity at 300℃			W/m•k	14.9
Thermal Expansion Coefficient 20-300℃			10^-6/℃	6.72
Thermal Expansion Coefficient 20-400℃			10^-6/℃	7.07
Thermal Expansion Coefficient 20-500℃			10^-6/℃	7.33
Electrical Property
Dielectric Strength			MV/m	>20
Dielectric Constant at 20℃			MHz	8.2
Dielectric Loss at 20℃			MHz	1.4x10^-4
Volume Resistivity at 100℃			Ω•cm	1.2x10¹⁶
Volume Resistivity at 300℃			Ω•cm	6.3x10¹⁴
Volume Resistivity at 500℃			Ω•cm	9.4x10¹²

Transparent Spinel Sheet Features:

Transparent Spinel has the following advantages:

-no scratches under harsh conditions;

-the thickness can be reduced by more than 60% under the same protection requirements, and the weight can be effectively reduced;

-in the case of the same thickness, the protection ability can be improved.

Therefore, it can be used in various high temperature, high pressure and corrosive environment of equipment observation window, gas detector window, high temperature boiler water level gauge, high temperature and high pressure equipment observation window, commercial bar code scanner window, downhole detection sensors, low voltage and high frequency capacitors, all kinds of goggles, etc.

Transparent Spinel Sheet Applications:

Transparent spinel (Magnesium aluminum transparent ceramics) has many applications in optics, electronics and structure.

Transparent Spinel Sheet Packaging:

SAM’s Transparent Spinel Sheet is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

Transparent Spinel Sheet FAQs

Q1. How should Transparent Spinel Sheets be cleaned and maintained?

Cleaning: Clean with non-abrasive cleaners and soft cloths to avoid scratching the surface. Ultrasonic cleaning can be used for thorough cleaning.

Maintenance: Regularly inspect for damage or contamination. Store in a clean, dry environment to prevent dust and other contaminants.

Q2: What sizes and shapes are available for Transparent Spinel Sheets?

Transparent spinel sheets are available in various sizes and thicknesses to meet different application needs. Custom sizes and shapes can also be manufactured to meet specific requirements.

Q3: Can Transparent Spinel Sheets be coated or treated for specific applications?

Yes, transparent spinel sheets can be coated or treated with various optical coatings to enhance performance for specific applications. Anti-reflective coatings, hard coatings, and other specialized treatments can be applied to improve optical performance and durability.

Specification

Item			Unit	Typical Values
Molecular Formula			-	MgAl₂O₄
Crystal System			-	Cubic
Density			g/cm³	3.57-3.58
Physical Properties
Mohs Hardness			-	8.5
Vickers Hardness			N/mm²	>1.26 x 10⁴
Modulus of Elasticity			Gpa	275
Flexural Strength			MPa	140-200
Compressive Strength			MPa	>500
DC Breakdown Strength			Kv/mm	34.5
Refractive Index
486.1nm	1.72433	2.2um			1.6848
546.1nm	1.71976	3.0um			1.6678
589.3nm	1.71611	4.0um			1.6387
The Thermodynamic Property
Melting Point			ºC	2135
Thermal Conductivity at 20℃			W/m•k	17.0
Thermal Conductivity at 100℃			W/m•k	16.4
Thermal Conductivity at 200℃			W/m•k	15.7
Thermal Conductivity at 300℃			W/m•k	14.9
Thermal Expansion Coefficient 20-300℃			10^-6/℃	6.72
Thermal Expansion Coefficient 20-400℃			10^-6/℃	7.07
Thermal Expansion Coefficient 20-500℃			10^-6/℃	7.33
Electrical Property
Dielectric Strength			MV/m	>20
Dielectric Constant at 20℃			MHz	8.2
Dielectric Loss at 20℃			MHz	1.4x10^-4
Volume Resistivity at 100℃			Ω•cm	1.2x10¹⁶
Volume Resistivity at 300℃			Ω•cm	6.3x10¹⁴
Volume Resistivity at 500℃			Ω•cm	9.4x10¹²