Prairie Ceramics manufacturing
- Slip Cast Alumina
- Metallic Heating Elements
- Alumina Coating
- Yttria Coatings
- Microwave Melting of Super Alloys
Prairie Ceramics manufactures slip cast alumina parts in a variety of Alumina content. The most common is 99.8% Alumina gas tight with density of 3.91 g/cc.
In addition to 99.8% Alumina we also make:
98% Alumina 95% Alumina 91% Alumina. 85% Alumina
Our capabilities include very large shapes including crucibles 13.5″ diameter x 6″ tall. We can make wall thicknesses from 0.125″ to 0.315″.
These are primarily used in firing and calcining operations where density and high purity are required.
Prairie Ceramics manufacturers metallic heating elements in a variety of configurations including:
Coiled Wire Wire with ceramic holder, flat and round.
Coiled wire manipulated into kiln specific configurations.
We work with a variety of wire, the most common is Kanthal APM and A1 wire in heavier gages including 8GA, 9GA, 10GA.
We specialize in replacement heating elements for Nabertherm kilns including but not limited to the following models
N150 N200 N300 N450 W1000 W1500 W3300 W5000
We make thermocouples for all types of kilns and specialize in thermocouples for Nabertherm, HED / Unique Pereney, Bickley and Lindberg.
Our most common application is to paint onto Recrystallized Silicon Carbide tile and beams to prevent the silica from sticking to parts.
In lead environments it works great for extending lining life of brick or fiber.
Standard Yttria Crucibles
Notes: Standard tolerances are +/- 4% on all dimensions UOS. Tighter tolerances are available upon request. Crucible volume is measured at 90% of the overall geometric capacity.
High Temperature Low Density Alumina Insulation For Microwave Applications – LDA 1800
We provide high performance alumina insulation specifically suited for thermal processing in microwave applicators and furnaces. We offer several temperature ratings and a variety of standard configurations to match your batch process. Prairie has developed a proprietary method for managing stresses due to thermal expansion and pressure cycling to achieve atmospheric reduction.
The LDA 1800 material is base material used in standard configurations ranging from 4” to 30” diameter. Above 6” diameter, the insulation assembly is made from segmented components which are compressed together with an outer membrane allowing expansion to occur without cracking.
Our Hybrid LDA 1800 System Features:
- 1800oC Maximum Operating Temp
- High Purity Alumina without Filler
- Low Thermal Conductivity
- High Strength
- Segmented for sizes > 6” Dia
- Density < 30 pcf
- Porosity 80% by wt.
- Thermal expansion 5.0 x 10-6 / oC