Method for producing ceramic-based components
AssigneeAerospace Coating Systems, Inc.
InventorsRussell S. Giller, James D. Horrigan
Life of this patent
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Abstract
A method of heat treating ceramic-based electronic components by providing a furnace fixture adapted to support the ceramic-based electronic components which is made from a substrate selected from the group consisting of silicon carbide (SiC), cordierite (2MgO.2Al2O.sub.3.5SiO.sub.2), mullite (3Al.sub.2 O.sub.3.2SiO.sub.2), stabilized zirconia, magnesium oxide (MgO) and alumina (Al.sub.2 O.sub.3) containing a glassy bond phase. A cladding layer of zirconia or magnesia is then deposited on the furnace fixture substrate by plasma deposition. The ceramic-based electronic component to be fired is placed on the zirconia-coated substrate; and heated to a desired temperature to heat treat the component.
Claims17
A method of heat treating ceramic-based components selected from the group consisting of titanates, ferrites, nickel manganate, zirconia, yttria, lead-containing compounds and beryllium-containing compounds, said method comprising the steps of:
- a) providing a furnace fixture adapted to support said ceramic-based components comprising a substrate selected from the group consisting of silicon carbide (SiC), cordierite (2MgO.2Al.sub.2 O.sub.3.5SiO.sub.2), mullite (3Al.sub.2 O.sub.3.2SiO.sub.2), stabilized zirconia, magnesium oxide (MgO) and alumina containing a glassy bond phase, said substrate having deposited on at least a portion of a surface thereof a top cladding layer of plasma-deposited zirconia or magnesia, said cladding layer being substantially inert to said ceramic-based components to prevent contamination thereof;
- b) providing said ceramic-based component;
- c) placing said ceramic-based component on the zirconia- or magnesia-coated portion of said substrate;
- and
- d) firing said ceramic-based component and zirconia-or magnesia-clad substrate to a desired temperature to heat treat said ceramic-based component.
A method of heat treating ceramic-based components selected from the group consisting of titanates, ferrites, nickel manganate, zirconia, yttria, lead-containing compounds and beryllium-containing compounds, said method comprising the steps of:
- a) providing a furnace fixture adapted to support said ceramic-based components comprising a substrate of alumina containing a glassy bond phase, said substrate having deposited on at least a portion of a surface thereof a top cladding layer of plasma-deposited zirconia, said cladding layer being substantially inert to said ceramic-based components to prevent contamination thereof;
- b) providing said ceramic-based component;
- c) placing said ceramic-based component on the zirconia-coated portion of said substrate;
- and
- d) firing said ceramic-based component and zirconia-clad substrate to a temperature of at least 1000.degree. C. to heat treat said ceramic-based component.
Dependencies are inferred from the claim text.