System, process and related sintered article

Patent metadata

Field	Value
Publication number	US-10155667-B2
Application number	US-201715414109-A
Country	US
Kind code	B2
Filing date	Jan 24, 2017
Priority date	Jan 26, 2016
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

A system, process and related sintered article are provided. The process includes supporting a piece of inorganic material with a pressurized gas and sintering the piece of inorganic material while supported by the pressurized gas by heating the piece of inorganic material to a temperature at or above a sintering temperature of the inorganic material such that the inorganic material is at least partially sintered forming the sintered article. The inorganic material is not in contact with a solid support during sintering. The sintered article, such as a ceramic article, is thin, has high surface quality, and/or has large surface areas.

First claim

What is claimed is:

1. A process of forming a sintered article, comprising:
heating a green portion of a tape of inorganic material in organic binder, at a removal zone, to a temperature sufficient to pyrolyze the organic binder, and thereby removing organic binder from the portion of tape;
horizontally conveying the portion of tape with organic binder removed from the removal zone to a sintering zone, wherein the tape of inorganic material extending between the removal zone and the sintering zone is unsintered inorganic material; and
sintering inorganic material of the portion of tape at the sintering zone by heating the inorganic material to a temperature at or above a sintering temperature of the inorganic material such that the inorganic material is sintered,
wherein the tape simultaneously extends through the removal and sintering zones and comprises portions that contemporaneously include inorganic material with organic binder, unsintered inorganic material with organic binder removed, and at least partially sintered inorganic material.

Assignees

• Corning Inc

Inventors

• Badding Michael Edward
• Bouton William Joseph
• Brackley Douglas Edward
• Kester Lanrik Wayne
• Ketcham Thomas Dale
• Miller Eric Lee
• Tanner Cameron Wayne
• Zimmermann James William

Classifications

• C04B2235/3217

  Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina · CPC title

• C04B2235/6586

  Processes characterised by the flow of gas · CPC title

• C03C8/02

  Frit compositions, i.e. in a powdered or comminuted form · CPC title

• C04B35/632

  Organic additives · CPC title

• C04B2235/3244

  Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof · CPC title