Synthesis and Nanomechanical Properties of Crystalline Boron-based Nanofilaments

结晶硼基纳米丝的合成及纳米力学性能

• 批准号: 0927163
• 负责人: Christopher Muhlstein
• 金额: $ 42万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2012-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0927163&HistoricalAwards=false
• 关键词: Synthesis; Nanomechanical; Properties; Crystalline; Boron

The objectives of this research award are to synthesize tiny, slender pieces of boron-based materials (nanofilaments) and to measure their electrical, optical, and mechanical properties. The nanofilaments will be created under controlled conditions by depositing materials in special atmospheres using energy provided by a laser. Subsequent experiments conducted on the nanofilaments will determine a variety of properties including their size, shape, electrical resistance, and mechanical strength. A unique feature of this program is that the changes in the properties of the nanofilaments when they are deformed will be determined. The deliverables for this program include the identification of the processing conditions that create particular kinds of nanofilaments, and their mechanical, electrical, and optical properties. Additionally, the researchers will document their results, educate engineering students, and introduce high school students to nanoscience through a summer camp.If successful, this award will provide the basis for a new generation of nanoenabled devices and composites. The resulting materials could have physical properties superior to traditional boron filaments and will be easier to use in composites. Potential applications include ultralight and conductive composites for cell phone housings, electromagnetic shielding, and aerospace structures. The results of the research will be disseminated to facilitate the introduction of these materials into both existing and new commercial products. Undergraduate, graduate, and post-doctoral students involved with the program will benefit from classroom instruction and the research process. Additionally, high school students will participate in a summer program that will give them a hands-on experience that will heighten their interest in the sciences and technical careers.

该研究奖项的目标是合成微小，细长的硼基材料（纳米丝），并测量其电学，光学和机械性能。纳米丝将在受控条件下通过使用激光提供的能量在特殊气氛中沉积材料而产生。对纳米丝进行的后续实验将确定各种特性，包括它们的尺寸、形状、电阻和机械强度。该程序的一个独特之处在于，将确定纳米丝变形时其性质的变化。该计划的可交付成果包括确定产生特定种类纳米丝的加工条件及其机械，电气和光学特性。此外，研究人员将记录他们的结果，教育工程专业的学生，并通过夏令营向高中生介绍纳米科学。如果成功，该奖项将为新一代纳米器件和复合材料提供基础。由此产生的材料可能具有比传统硼丝更上级的物理性能，并且将更容易用于复合材料。潜在的应用包括用于手机外壳、电磁屏蔽和航空航天结构的超轻和导电复合材料。将传播研究结果，以促进将这些材料引入现有和新的商业产品。 参与该计划的本科生，研究生和博士后学生将从课堂教学和研究过程中受益。 此外，高中生将参加一个暑期项目，这将给他们一个实践经验，这将提高他们对科学和技术职业的兴趣。