Alumina Thermal Spray Powders

Introduction

Pure aluminum oxide is known as a wear resistant protective coating that also has excellent electrical insulating properties. Aluminum oxide is often combined with titanium oxide. The most common combinations are 97/3, 87/13, 60/40. The addition of titanium oxide reduces the coating brittleness, but consequently, the hardness and electrical insulating properties are reduced. Combinations with other oxides is also available as per clients’ request.

Properties

Good abrasion, sliding wear and friction resistance
Application range pure Al2O3 is up to 1600 ºC, with 40% TiO2 up to approx. 550 ºC
Pure Al2O3 is sensitive to shock and impact. The ductility increases with TiO2 content increases
Pure Al2O3 is not conductive and suitable for electrical insulating coatings. With increasing TiO2 content, the conductivity increases
Resistant to many acids and bases
Decreasing hardness with increasing TiO2 content

Applications

Wear resistant coatings in textile and synthetic fiber industry.
Electrical insulating coatings of pure Al2O3
Chemical Industry
Household applications, pans, etc.

Al2O3

Powder Name	Chemistry &Manufacture	Particle Size	Characteristics
TC-12.1.0 Al2O3	Al2O3 99.9 Agglomerated & Sintered	-45/15 μm	High purity alumina Using in semicon, electrical, photovoltaic industries and with high dielectric properties Resistant to acid, alkali and heat, and resistant to high temperature erosion Max. working temp. 1650°C
TC-12.1.2 Al2O3	Al2O3 99.5 Fused & Crushed	-45/22 µm	High purity alumina Using in semicon, electrical, photovoltaic industries and with high dielectric properties Resistant to acid, alkali and heat, and resistant to high temperature erosion Max. working temp. 1650°C
TC-12.1.3 Al2O3	Al2O3 99.0 Fused & Crushed	-45/5 µm	Using in semicon, electrical, photovoltaic industries and with high dielectric properties Resistant to acid, alkali and heat, and resistant to high temperature erosion Max. working temp. 1650°C
Other Particle sizes are available per request

Al2O3-3TiO2

Powder Name	Chemistry &Manufacture	Particle Size	Characteristics
TC-12.2.0	Al2O3-TiO2 97/3 Fused & Crushed	-75/30 μm	Resistant to particle wear and fretting wear, and to high temperature oxidation Coating formed is tougher than pure alumina Used in textile and artificial fiber industries, like thread and synthetic fiber production tooling, and also used for butterfly valves, electrical insulation and dielectric applications Service temp. up to 1,100°C (2,010°F)
TC-12.2.1	Al2O3-TiO2 97/3 Fused & Crushed	-45/11 µm	Resistant to particle wear and fretting wear, and to high temperature oxidation Coating formed is tougher than pure alumina Used in textile and artificial fiber industries, like thread and synthetic fiber production tooling, and also used for butterfly valves, electrical insulation and dielectric applications Service temp. up to 1,100°C (2,010°F)
TC-12.2.2	Al2O3-TiO2 97/3 Fused & Crushed	-45/5 µm	Resistant to particle wear and fretting wear, and to high temperature oxidation Coating formed is tougher than pure alumina Used in textile and artificial fiber industries, like thread and synthetic fiber production tooling, and also used for butterfly valves, electrical insulation and dielectric applications Service temp. up to 1,100°C (2,010°F)
TC-12.2.3	Al2O3-TiO2 97/3 Fused & Crushed	-22/5 µm	Resistant to particle wear and fretting wear, and to high temperature oxidation Coating formed is tougher than pure alumina Used in textile and artificial fiber industries, like thread and synthetic fiber production tooling, and also used for butterfly valves, electrical insulation and dielectric applications Service temp. up to 1,100°C (2,010°F)
Other Particle sizes are available per request

Al2O3-13TiO2

Powder Name	Chemistry &Manufacture	Particle Size	Characteristics
TC-12.3.0	Al2O3-TiO2 87/13 Fused & Crushed	-60/30 μm	Resistant to particle and fretting wear, and to high temperature oxidation Coating formed is tougher than pure alumina Used in textile and artificial fiber industries, like thread and synthetic fiber production tooling, and also used for butterfly valves, electrical insulation and dielectric applications Service temp. up to 1,100°C (2,010°F)
TC-12.3.1	Al2O3-TiO2 87/13 Fused & Crushed	-45/15 µm	Resistant to particle and fretting wear, and to high temperature oxidation Coating formed is tougher than pure alumina Used in textile and artificial fiber industries, like thread and synthetic fiber production tooling, and also used for butterfly valves, electrical insulation and dielectric applications Service temp. up to 1,100°C (2,010°F)
TC-12.3.2	Al2O3-TiO2 87/13 Fused & Crushed	-22/5 µm	Resistant to particle and fretting wear, and to high temperature oxidation Coating formed is tougher than pure alumina Used in textile and artificial fiber industries, like thread and synthetic fiber production tooling, and also used for butterfly valves, electrical insulation and dielectric applications Service temp. up to 1,100°C (2,010°F)
Other Particle sizes are available per request

Al2O3-40TiO2

Powder Name	Chemistry &Manufacture	Particle Size	Characteristics
TC-12.4.0	Al2O3-TiO2 60/40 Fused & Crushed	-45/15 μm	Resistant to abrasion, fretting, particle erosion and dilute acids Good friction characteristics for hard bearing surfaces Ground/polished surfaces have low wettability Used in household pan, and for pump parts, shaft sleeves, mechanical seals, thread and synthetic fiber production tooling Service temp. up to 540°C (1,000°F)
TC-12.4.1	Al2O3-TiO2 60/40 Fused & Crushed	-45/5 µm	Resistant to abrasion, fretting, particle erosion and dilute acids Good friction characteristics for hard bearing surfaces Ground/polished surfaces have low wettability Used in household pan, and for pump parts, shaft sleeves, mechanical seals, thread and synthetic fiber production tooling Service temp. up to 540°C (1,000°F)
TC-12.4.2	Al2O3-TiO2 60/40 Fused, Crushed & Blended	-75/30 µm	Resistant to abrasion, fretting, particle erosion and dilute acids Good friction characteristics for hard bearing surfaces Ground/polished surfaces have low wettability Used in household pan, and for pump parts, shaft sleeves, mechanical seals, thread and synthetic fiber production tooling Service temp. up to 540°C (1,000°F)
Other Particle sizes are available per request

Al2O3-40ZrO2

Powder Name

Chemistry &Manufacture

Particle Size

Characteristics

TC-12.5.0

Al2O3-ZrO2 60/40

Fused & Crushed

-45/5 μm

High wear resistance except for fatigue load conditions
Used in papermaking industry
Service temp. up to 950°C

Other Particle sizes are available per request

Al2O3-30MgO