EMS MATERIALS SCIENCE & METROLOGY CATALOG 2019–20 EDITION
SAMPLE PREPARATION & SUPPLIES Polishing and Lapping Supplies (continued)
Alumina Powder:
EMS's Alumina Powders are accurately controlled for all specs and particle size distribution, assuring you the best polishing results. The following micron sizes are available: 0.05, 0.3, and 1.0.
TYPICAL APPLICATIONS:
Precision Optics Silicon Wafers Acrylic lenses Metallographic Sections
Ferrite Components Electro-Optical Crystals Gem Stones
Type DX Alumina Powder is specially treated to reduce the number of agglomerates (group of particles in each grade of manufactured alumina). The result is fast polishing and improved quality of the finished products.
Type N Alumina Powder is recommended when these improvements are not necessary.
Cat. #
50360-01 50360-05 50360-10 50361-01 50361-05 50361-10
Description
Type N, Alumina Powder, 0.05µm Type N, Alumina Powder, 0.3µm Type N, Alumina Powder, 1.0µm Type DX, Alumina Powder, 0.05µm Type DX, Alumina Powder, 0.3µm Type DX, Alumina Powder, 1.0µm
Alumina Slurry
These suspensions are water-based and contain no additives, which may interfere with polishing or contaminate the sample. All slurries are very stable and alumina is evenly dispersed. Excellent for the finest finishes
Cat. #
50368-10 50368-20 50368-30
Description
Alumina Slurry, 0.05µm Alumina Slurry, 0.3µm Alumina Slurry, 1.0µm
Colloidal Alumina As an acidic dispersion, Colloidal Alumina is a chemical-mechanical action, that provides superior surfaces on germanium, silicon, gallium arsenide, zinc sulphide, fluorides, sapphire, ferrite’s and silicon carbide. Low scatter finishes can be obtained on pure metals such as nickel, tungsten, copper, beryllium, steel and
aluminum. Epoxy resin materials and plastics have also been successfully polished with this versatile colloidal dispersion.
Properties: pH: 3 - 3.5; solids: 20%; viscosity: thixotropic.
Application: Depending upon the application, Colloidal Alumina can be used full strength or diluted. Dilution up to 1:1 or higher with deionized water is recommended. Polyurethane and short nap cloths are recommended. However, most commonly used laps and pads are compatible with colloidal alumina.
50365-05 50365-06
16
Colloidal Alumina Colloidal Alumina
1 pt 1 gal
Size 6 oz 6 oz 6 oz
Size 1 lb 1 lb 1 lb 1 lb 1 lb 1 lb
Aluminum Oxide Powder - Al2 Cat. #
50362-03 50362-05 50362-09 50362-15
C) Description
Aluminum Oxide Powder, 3.0µm Aluminum Oxide Powder, 5.0µm Aluminum Oxide Powder, 9.0µm Aluminum Oxide Powder, 15.0µm
Boron Carbide Powder (B4
Boron Carbide is one of the hardest materials known, ranking third behind diamond and cubic boron nitride.
Extreme hardness, (Knoop 100g: 2900-3580 kg/mm2
Good chemical resistance Good nuclear properties Low density (2.52 g/cm2
)
Due to the hardness, boron carbide powder is used as an abrasive in polishing and lapping applications.
Cat. #
50510-08 50510-10 50510-14 50510-18 50510-23 50510-35 50510-42 50510-50
Description
Boron Carbide Powder, 8µm Boron Carbide Powder, 10µm Boron Carbide Powder, 14µm Boron Carbide Powder, 18µm Boron Carbide Powder, 23µm Boron Carbide Powder, 35µm Boron Carbide Powder, 42µm Boron Carbide Powder, 50µm
Colloidal Silica
This non-crystallizing Colloidal Silica is made to be user friendly. It eliminates the problems that are caused by drying or freezing that are associated with other colloidal silica products which are used for chemical/mechanical polishing.
Colloidal silica is a first choice silica dispersion for optimizing polishing results such as silicon, fused quartz, fused silica, lithium niobate, YAZ, GGG, alexandrite, sapphire and many others.
Properties: pH: 9.6 - 9.9; Particle size: 20-60 nm; Solids: 40%; Viscosity: 20-40 cp.
Application: Colloidal silica can be used full strength or diluted. Dilution to 1:1 or higher with deionized water is recommended. Polyurethane and short nap cloths can be used.
50366-05 50366-06
Colloidal Silica Colloidal Silica
Silicon Carbide Powder SiC
Dark gray 98% SiC. Hardness, Moh’s scale 9.0; Knoop Scale 2500. Crystallography: hexagonal – alpha and beta phase.
Cat. #
50260-8 50260-10 50260-14 50260-18 50260-23 50260-35 50260-42 50260-50
Description
Silicon Carbide Powder, 8µm Silicon Carbide Powder, 10µm Silicon Carbide Powder, 14µm Silicon Carbide Powder, 18µm Silicon Carbide Powder, 23µm Silicon Carbide Powder, 35µm Silicon Carbide Powder, 42µm Silicon Carbide Powder, 50µm
Qty 1lb 1lb 1lb 1lb 1lb 1lb 1lb 1lb
1 pt 1 gal
Qty 1 lb 1 lb 1 lb 1 lb 1 lb 1 lb 1 lb 1 lb
) O3
These are abrasive powders that are prepared from aluminum oxide, offering excellent coarse and intermediate polishing, with fast results.
Size 1 lb 1 lb 1 lb 1 lb
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