GOALI: Microwave Sintering of Auto-Ignition Synthesized Nano-Ceramics

GOALI：自燃合成纳米陶瓷的微波烧结

• 批准号: 9800009
• 负责人: Sarit Bhaduri
• 金额: $ 27万
• 依托单位: Regents of the University of Idaho
• 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: 1998-06-01 至 2004-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9800009&HistoricalAwards=false
• 关键词: GOALI; Microwave; Sintering; Auto; Ignition

Bhaduri 9800009 This project involves both scientific issues as well as technical developments under one comprehensive project. From a scientific viewpoint, the project deals with synthesizing nanocrystalline ceramics and densifying them with an activated consolidation process such as microwave sintering. Nanocrystalline materials signify particulates with at least one dimension lOOnm (1nm 10-9 m) or less. These materials are expected to have altered physical and mechanical properties, provided they can be consolidated maintaining the nanocrystalline structure. However, this is a challenging job since densification occurs with concurrent grain growth. In this work, microwave sintering will be used as an activated consolidation process. Sintering schedule will be determined after measuring the high temperature dielectric properties of the powders. The technical developments will be carried out under the GOALI program wherein a consortium of several local industries will be involved. These industries represent a wide variety of products from powder production to cutting tool development as well electronic materials. Widespread interactions are expected to take place among the partners.

Bhaduri 9800009 该项目在一个综合项目下既涉及科学问题又涉及技术开发。从科学的角度来看，该项目涉及合成纳米晶陶瓷并通过微波烧结等活化固结工艺使其致密化。纳米晶体材料表示具有至少一维100nm(1nm 10-9m)或更小的颗粒。这些材料预计会改变物理和机械性能，前提是它们可以被固结并保持纳米晶体结构。然而，这是一项具有挑战性的工作，因为致密化是在晶粒生长的同时发生的。在这项工作中，微波烧结将用作活化固结工艺。烧结进度将在测量粉末的高温介电性能后确定。 技术开发将在 GOALI 计划下进行，其中由多个当地行业组成的联盟将参与其中。这些行业代表了从粉末生产到切削工具开发以及电子材料的各种产品。预计合作伙伴之间将进行广泛的互动。