SBIR Phase II: A Low Cost Process for Toughening Ceramics

SBIR 第二阶段：一种低成本的陶瓷增韧工艺

• 批准号: 9801402
• 负责人: Jack Sibold
• 金额: $ 39.31万
• 依托单位: TDA Research, Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-07-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9801402&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Low; Cost

*** 9801402 Sibold This Small Business Innovation Research (SBIR) Phase II project will develop a low cost process for toughening alumina ceramics. These materials are widely used in anti-wear, anti-corrosion, and electrical insulation applications in many industries. However, markets remain limited because of the brittleness of these ceramics. While tough ceramics are available, they are six to 50 times more costly than alumina. Phase I developed a simple water-based infiltration process that increased the fracture toughness of a commercial alumina ceramic by as much as 25% with only 50% increase in material cost. The process was performed on simple fracture toughness testing specimens. Phase II will develop an optimized process and material with the microstructure and fracture toughness that can be made easily and inexpensively by a commercial ceramics manufacturer. The primary objective is a production process for tough, damage tolerant ceramics, which can be used in place of normally brittle ceramics. The anticipated increase in toughness of low cost alumina ceramics will significantly expand the commercial applications for technical ceramics. ***

* 9801402 Sibold 这个小企业创新研究（SBIR）第二阶段项目将开发一种低成本的氧化铝陶瓷增韧工艺。 这些材料广泛用于许多行业的耐磨、防腐和电绝缘应用。 然而，由于这些陶瓷的脆性，市场仍然有限。 虽然可以使用坚韧的陶瓷，但它们的成本是氧化铝的6到50倍。 第一阶段开发了一种简单的水基渗透工艺，该工艺将商业氧化铝陶瓷的断裂韧性提高了25%，而材料成本仅增加了50%。 该过程是在简单的断裂韧性测试试样上进行的。 第二阶段将开发一种优化的工艺和材料，其微观结构和断裂韧性可以由商业陶瓷制造商轻松廉价地制造。 主要目的是提供一种坚韧、耐损伤陶瓷的生产方法，其可用于代替通常脆性的陶瓷。 低成本氧化铝陶瓷韧性的预期增加将显著扩大工业陶瓷的商业应用。 ***