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AGC-01

Adaptive Glass-Ceramic.

A ceramic powder mix formulated to your application's thermal expansion, not the other way around.

Adaptive Glass-Ceramic in a Strocera sample jar
Specification
Thermal expansion
Thermal expansion behaviour
Negative, continuous over 100 to 800 °C
Push-rod dilatometry on sintered specimen
Total linear strain at 780 °C
approx. -4.4 × 10⁻³ (dL/L₀)
Sintered specimen; ambient reference, see Figure 1
Mean CTE, 25 to 780 °C
approx. -5.8 × 10⁻⁶ /K
Calculated from the dilatometric curve
Mean CTE, 25 to 300 °C
approx. -12 × 10⁻⁶ /K
Region of steepest contraction
Mean CTE, 300 to 780 °C
approx. -2.3 × 10⁻⁶ /K
Region of reduced contraction rate
Thermal shock resistance
Survives repeated 800 °C to 20 °C water quench
In-house repeated water-quench test
Composition · batch formulation
α-Alumina (α-Al₂O₃)
Major constituent
Refractory crystalline matrix; hardness, stiffness, chemical resistance
Boron-based additive
Balance
Glass-forming and reactive component; source of the negative expansion behaviour

Mean (secant) CTE by push-rod dilatometry on a sintered specimen; instantaneous coefficients vary across the range. AGC-01 is a development material: data from laboratory batches, not yet a qualified specification.

Packaging and delivery
TierContainerGrossNominalDimensionsNominal
1 kg1.5 L wide-neck HDPE jar, pigmented1.5 kg16 x 16 x 20 cm
5 kg6 L HDPE pail, pigmented6.2 kg28 x 28 x 32 cm
25 kg5 x 5 kg HDPE pails, pigmented30 kg60 x 30 x 34 cm
Sealing
Screw or clip lid, induction seal, tamper band
Barrier
Heat-sealed foil laminate liner, desiccant and humidity indicator card
Shelf life
12 months unopened, 1 month after opening
Storage
Sealed barrier bag with desiccant, below 50% RH, 5 to 35 C
HS code
3824.99
Transport
Not classified as dangerous goods under IATA DGR or IMDG

Moisture sensitive. Keep the barrier bag sealed until use.

Before you commit

Measured, not estimated.

Every product ships with its characterization report, referenced to the specification it was built against. Where a value is not measured, it is not published.

Where a published grade does not fit the requirement, a paid evaluation puts your specification through the same measurement stack.

Request a paid evaluation
What you get
01

Adjustable thermal expansion

The unmodified blend contracts continuously over 100 to 800 °C: mean CTE approx. -5.8 × 10⁻⁶ /K from 25 to 780 °C. The negative expansion of the blend offsets the positive expansion of alumina, so the net coefficient of the fired body is set by the proportion in which the two are combined, from the continuous negative behaviour of the unmodified blend up to near-zero net expansion. You state the expansion behaviour the design requires; targets are agreed and verified by dilatometry on a trial specimen before series supply.

03

Powder form

Dry, ready-to-fire powder blend, formulated from high-purity α-alumina and a proprietary boron-based additive. You shape and fire it in your own facility; the firing schedule is issued per project. Alternatively, combine the standard blend with your own alumina in-house and set the net coefficient at the point of use.

02

Thermal shock survival

Survives repeated 800 °C to 20 °C water quench. Specimens heated to 800 °C and above and quenched abruptly into water at 20 °C, repeated on the same specimen, retain their structural integrity and remain serviceable. Video-documented. A quantified protocol to ASTM C1525 is in preparation.

Applications

Where engineers specify Adaptive Glass-Ceramic.

Next step

Bring your specification.

Quantities are quoted directly and formulation runs through engineering.