NEXTREMA® Translucent White (724-5) Glass-Ceramic Sheet
Description
NEXTREMA® is a unique glass-ceramic material platform. This material combines the glossy appearance of glass with exceptional thermal, chemical, optical and mechanical properties like an attractive bending strength of 100 - 165 MPa for materials with a thickness of around 4 mm. With a thermal resistance of up to 950 °C, depending on the material type, combined with a thermal shock resistance of 600 - 820 °C, it ensures a reliable material performance even under extreme temperature conditions. Our six unique glass-ceramic types combined with the wide range of sizes and thicknesses varying from 2 mm to 6 mm (> 6 mm on request) will open up new possibilities in product design and performance. The unique transmission spectra provide new ideas for combining innovative infrared heating functionalities with attractive lighting effects. The versatility of this material will surely impress you.
Properties
General
Density ρ
2.5 - 2.6 g/cm³ at 20 °C
approx.
Porosity Vvoid
0 %
approx., ISO 9385
Dimension
Dimensions
Flat cut-to-size panels and bent panels are also available. Formats of flat cut-to-size panels and bent panels on request.
Length l
1600 - 1954 mm
Thickness t
3 - 6 mm
Width w
900 - 1100 mm
Mechanical
Elastic modulus E
84 - 95 GPa at 20 °C
approx., ASTM C-1259
Flexural strength σbend
100 - 165 MPa at 20 °C
approx., DIN EN 1288, Part 5, R45
Hardness, Knoop, HK2 HK2
570 - 600 [-] at 20 °C
approx., ISO 9385 (HK 0.1/20)
Poisson's ratio ν
0.25 - 0.26 [-] at 20 °C
approx., ASTM C-1259
Thermal
Coefficient of thermal expansion α
-8E-7 - 6E-7 1/K at 50 °C
for 0-50°C, DIN ISO 51045-1, DIN ISO 7991
Max service temperature Tmax
650 °C
short heating (1h) hom.
Specific heat capacity cp
800 - 850 J/(kg·K) at 20 °C
for 20-100°C
Thermal conductivity λ
1.5 - 1.7 W/(m·K) at 90 °C
DIN 51936, ASTM E 1461-01
Electrical
Dielectric constant, 1MHz εr,1MHz
6.5 - 7.8 [-] at 25 °C
DIN 53483
Electrical resistivity ρel
3.98E+6 - 1.58E+7 Ω·m at 250 °C
DIN 52326
Loss tangent tanδ
2E-3 - 0.02 [-] at 25 °C
1MHz, DIN 53483
Acoustical
Sound speed, longitudinal clong
6300 - 6700 m/s at 20 °C
ASTM C-1259
Chemical properties
Element
Weight %
Comment
50 - 80 %
SiO₂ (DIN EN 1748-2-1)
15 - 27 %
Al₂O₃ (DIN EN 1748-2-1)
0 - 8 %
BaO (DIN EN 1748-2-1)
0 - 8 %
CaO (DIN EN 1748-2-1)
0 - 5 %
Li₂O (DIN EN 1748-2-1)
Technological properties
Application areas
The following applications are simply examples of areas where NEXTREMA® has already been put to use successfully: BBQ applications - NEXTREMA® provides perfect visibility into the grill and can be used to optimize diverse aspects of the barbecue experience; IR applications - NEXTREMA® transforms infrared heaters into eye-catching design features and protects heating elements stylishly; High temperature furnaces - Use NEXTREMA® to line ovens or apply support plates (e.g. in display manufacturing); Household appliances - NEXTREMA® revolutionizes designs for transparent heating elements and heat resistant thin film coatings; Functional design material - NEXTREMA® is a revolutionary material for innovative product and industry design.
Compliance
NEXTREMA® materials do not contain any harmful substances according to the European directive 2002/95/EC “Hazardous Substances in electrical and electronically Equipment” and fulfill the terms of RoHS without any concerns.
Corrosion properties
The chemical resistance of NEXTREMA® is more extensive than that of most other comparable materials: Acid resistance (DIN 12116) S 1-2; Alkaline resistance (ISO 695) A 1-2; Hydrolytic class (DIN ISO 719) HGB 1.
Processing methods
NEXTREMA® is practically process inert. Even under extreme conditions, the material will not have negative interactions with the process environment. There are no interfering process factors such as gas emissions from organic components.
This material data has been provided by SCHOTT AG.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.
Use cases
Heat Beds in 3D Printers: Why Glass-Ceramics are a Good Material ChoiceNew Material Options for Industrial Processes: Discover NEXTREMA® Glass-CeramicsSmartLabs: Versatile Settings with Even More Versatile MaterialsThe Versatility of Glass-Ceramics – A Catalyst for Industry and Product DesignThermal Shock Resistant Materials: The Case for Glass-CeramicsWhy Glass-Ceramics are an Ideal Material for High-Temperature Applications+49 89 262075200
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