Alumina Ceramics (Al2O3)

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Spherical Alumina (Al2O3) Powder, HMBAK Series

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Spherical Alumina (Al2O3) Powder is produced by the high-temperature melting-sphere-jet method, and then sieving, purification, and other processes to get the final object. It exhibits a high spheroidization rate, high filling ratio, and high thermal conductivity. Heeger Materials offers top-quality Spherical Alumina Powder at competitive prices. Specialized and customized services are available.

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Data sheet

Shape	Spherical Powder
Materials	Al2O3
Purity	99.9%

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Spherical Alumina (Al2O3) Powder has unique and excellent physicochemical properties and has been widely used as the filler of thermally interface materials, thermally conductive engineering plastics, thermally conductive fillers of aluminum-based copper-clad laminates, and so on. HM has developed spherical alumina products to meet customers' diverse needs, including the HMBAK series, HM Top Cut series, HMBAH series, and HMBAM series.

Spherical Alumina (Al2O3) Powder, HMBAK Series

HMBAK Series Spherical Alumina Powder Specifications

Properties			Unit	HMBAK Series Product
Properties			Unit	HMBAK-1	HMBAK-2	HMBAK-5	HMBAK-10	HMBAK-15	HMBAK-20	HMBAK-30	HMBAK-40	HMBAK-70	HMBAK-90	HMBAK-120
Particle Size		D10	μm	0.58	0.69	2.54	4.18	7.03	10.5	16.88	23.77	44.32	55.23	90.95
		D50	μm	1.03	2.18	5.52	10.03	15.11	20.8	30.52	41.54	71.54	87.96	122.39
		D90	μm	2.14	5.24	9.09	18.46	24.06	37.24	48.87	66.44	106.5	134.92	172.72
Specific Surface Area			m²/g	1.69	1.27	0.36	0.17	0.14	0.11	0.1	0.07	0.05	0.06	0.06
Electricity Conductivity			μS/cm	6.07	5.40	5.65	4.05	1.83	6.87	7.95	4.65	6.18	8.15	2.6
PH Value			--	7.53	7.79	7.7	7.41	7.37	7.62	7.39	7.31	7.42	7.3	7.44
Moisture			%	0.05	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.05	0.03	0.03
True Density			g/cm³	3.71	3.71	3.74	3.76	3.86	3.79	3.75	3.81	3.87	3.88	3.81
Spheroidization Rate			%	96	98	98	98	96	96	98	96	96	95	96
Chemical Composition	Al2O3		%	99.93	99.94	99.93	99.94	99.93	99.94	99.94	99.94	99.94	99.94	99.94
	SiO2		ppm	445	373	424	358	430	352	333	349	342	330	359
	Fe2O3		ppm	152	120	176	136	158	144	161	148	158	164	133
	Na2O		ppm	103	107	100	106	112	104	106	103	100	106	108

HMBAK Series Spherical Alumina Powder SEM

Spherical Alumina (Al2O3) Powder, HMBAK Series SEM

HMBAK Series Spherical Alumina Powder Features

High Loadability
High Thermal Conductivity
Low Abrasion

HMBAK Series Spherical Alumina Powder Applications

Thermal Interface Materials: thermal silica gasket, grease, phase change materials.
Thermal Engineering Plastics: LED lamp cover, switch enclosures, electronic products shell, heat dissipators for electronics.
Al-based Copper Clad Laminate: high-power LED circuit substrate, power circuit boards, etc.
Alumina Ceramic Filters
Thermal Spray Coating

HMBAK Series Spherical Alumina Powder Packing

Spherical Alumina (Al2O3) Powder should be stored in a sealed container in a dry and cool place, and should not be exposed to air for an extended period. We offer vacuum-sealed packaging including 100g/bag, 500g/bag, 1kg/bag, and 25kg/drum, or we can offer customized packaging as per specific requirements.

Spherical Alumina (Al2O3) Powder, HMBAK Series Packing

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