Core Technology

Powder-Metallurgy Aluminum Matrix Composites

A multi-dimensional matching design of composition, particle size, and surface state addresses the interface-bonding challenge caused by native aluminum oxide film.

Process

STEP 1

Powder Feedstock

Alloy element / ceramic raw powder
STEP 2

Mixing

Multi-dimensional matching
STEP 3

Forming

Compaction
STEP 4

Sintering

Densification
STEP 5

Shaping

Near-net shape
STEP 6

Precision Machining

Final tolerances

Material Database

300+

Formulations spanning low, medium, and high volume fractions to meet varied application demands.

Material Physical Properties

Indicator	Unit	@	Low volume fraction ≤25 vt%		Medium volume fraction 25-40 vt%		High volume fraction ≥40 vt%
			Untreated	Heat Treated	Untreated	Heat Treated	Untreated	Heat Treated
Density	ρ (g/cm³)		2.8–2.85	2.8–2.85	2.85–2.95	2.85–2.95	2.95–3.05	2.95–3.05
Tensile strength	Rm / MPa	RT	280–350	400–600	260–350	400–600	200–300	300–450
Tensile strength	Rm / MPa	300 ℃	100–200	150–300	100–200	200–350	100–200	200–300
Elongation	A / %	RT	3–10	—	1–5	—	0.5–2	—
Young's modulus	E / GPa	RT	90–120	—	120–150	—	150–210	—
Young's modulus	E / GPa	300 ℃	80–110	—	110–130	—	140–190	—
Thermal conductivity	λ W/(m·K)	RT	150–210	—	140–200	—	130–190	—
Thermal conductivity	λ W/(m·K)	300 ℃	130–190	—	125–170	—	100–150	—
Specific heat capacity	J/(g·K)	RT	0.8	—	0.8	—	0.7	—
CTE	1E⁻⁶ / K	25–100 ℃	14–18	—	10–14	—	7–10	—
CTE	1E⁻⁶ / K	25–300 ℃	16–20	—	14–17	—	8–12	—

Medium volume fraction 25-40 vt%

Densityρ (g/cm³): Raw2.85–2.95HT2.85–2.95
Tensile strength · RTRm / MPa: Raw260–350HT400–600
Tensile strength · 300 ℃Rm / MPa: Raw100–200HT200–350
Elongation · RTA / %: Raw1–5
Young's modulus · RTE / GPa: Raw120–150
Young's modulus · 300 ℃E / GPa: Raw110–130
Thermal conductivity · RTλ W/(m·K): Raw140–200
Thermal conductivity · 300 ℃λ W/(m·K): Raw125–170
Specific heat capacity · RTJ/(g·K): Raw0.8
CTE · 25–100 ℃1E⁻⁶ / K: Raw10–14
CTE · 25–300 ℃1E⁻⁶ / K: Raw14–17