C12 Ceramic Paper
Summary
C12 Ceramic Paper is an effective, low-cost solution for eliminating common sticking, cracking, and warping problems that can make the debinding and sintering process very challenging. C12 Ceramic Papers provide a thin and highly uniform distribution of inert ceramic powders that are designed to create a protective barrier between green parts and setter plates or supporting kiln furniture. C12 Ceramic Paper is perfect for sintering ceramics and sintered metal products, and is a high performance replacement for ceramic fiber paper, kiln paper, and kiln wash.
Description
C12 Ceramic Papers are thin, flexible sheets composed of specially processed, high-purity zirconium oxide (ZrO2), aluminum oxide (Al2O3), or magnesium oxide (MgO) particles. C12 Ceramic Papers are an effective, low-cost solution for eliminating problems with sticking, cracking, and warping that often makes firing delicate green forms and sintering components difficult.
C12 Ceramic Papers use only high purity ceramic particles in a proprietary binder that is free of phthalates and inorganic impurities (NaSi, etc.). The proprietary binder is engineered to burn out cleanly at low temperatures before other binders that are commonly used for green gas ceramic forming, such as PVA and PVB. A thin, highly uniform layer of inert ceramic powder is deposited between the green parts being sintered and the setter plates, kiln shelves, or other fixtures in contact with the green part. This inert layer of particles resists sintering, and provides a low friction surface that allows for shrinkage of green parts with minimal stress, sticking, and distortion. C12 Ceramic Papers are highly flexible and conformal, and can be easily used to line setter trays and 3D surfaces.
Lighter-grade C12 Ceramic Papers are ideal for firing flat ceramic plates, SOFC and SOEC, solid state batteries, tapecast ceramics, PZT piezoceramics, and other delicate parts that require high surface quality and low distortion. C12 Ceramic Papers are highly effective at preventing the contamination of critical alloys and sintered metal parts from surfaces that they contact during the sintering process. Heavier-grade C12 Ceramic Paper is also available for firing medium to larger sized technical ceramics and sintered metal parts that must meet stringent quality standards.
Advantages of C12 Ceramic Paper
♦ Reduces labor costs associated with applying setter sands, powders, and kiln wash.♦ Eliminates sticking, setter drag, and cracking of fragile parts during sintering.♦ Allows for stacking of sintered parts, maximizing furnace capacity and efficiency.♦ Produces thin sintered plates that are crack-free and flat.♦ Improves yields and quality.♦ Reduces lead loss in PLZT and PZT piezoceramics.♦ Reduces contamination and prolongs life of setter plates.
♦ Allows use of weighted cover plates to prevent warping.
Cutting C12 Zirconia Ceramic Paper with scissors to fit neatly into base of sintering tray.
A microscopic representation of the effects of setter powder on a ceramic part. Conventional setter powders are typically brushed or sifted onto parts before firing. Cracks, deformation, and sticking often result because it is very difficult to distribute powders evenly.
PZT ceramic plate fired with conventional sifted setter powders shows distortion, setter drag and cracks.
Stack of thin ceramic tapes with C12 Ceramic Papers inserted between each tape, prior to firing.
C12 Ceramic Paper binder burns out cleanly before other binders commonly used for green ceramic forming
A microscopic representation of a C12 Ceramic Paper in use. Specially-processed, inert ceramic powders are deposited in thin, highly uniform layers with C12 Ceramic Papers. After firing, parts are flat, crack-free and have superior surface quality.
An Identical PZT plate, fired with C12 Ceramic Papers, is distortion and crack free.
Applications
C12 Ceramic Paper is ideal for sintering difficult components such as thin tapes, substrates, and membranes that contain lead, cobalt, nickel, transition metals, glass and other volatile components.
C12 Ceramic Papers are optimally formulated in various grades to be compatible with sintering and debinding materials such as:
♦ Piezoceramics, Pb-containing ceramics, LTCC and glass ceramics
♦ Tapecast ceramics such as Solid Oxide Fuel Cells (SOFCs) and solid electrolytes
♦ Specialty capacitors, varistors, and electronic components.
♦ Powdered metal parts
♦ Superconductors