Wetting Properties of Molten Iron Alloy at High-Pressure

铁合金高压下的润湿性能

• 批准号: 9417855
• 负责人: Carl Agee
• 金额: $ 4.5万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-01 至 1996-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9417855&HistoricalAwards=false
• 关键词: Wetting; Properties; Molten; Iron; Alloy

9417855 Agee This award will support experiments to determine the effect of pressure on the wetting of silicate and oxide grain boundaries by molten iron alloy. dihedral angles of crystal-liquid interfaces will be measured on quenched run products to quantify grain boundary wetting and alloy melt connectivity. The proposed starting material is the Homestead L5 ordinary chondrite. Experiments will first be carried out using piston-cylinder techniques to establish the optimum conditions for achievement of textural equilibrium and to examine the effect of pressure in the 0.5 to 4 GPa range. The second stage of the investigation will attempt to extend the work to higher pressures in a multi-anvil device. The results of the proposed research will place important physical constraints on models for core extraction from chondritic mantle.

9417855 Agee该奖项将支持实验，以确定压力对熔融铁合金润湿硅酸盐和氧化物晶界的影响。 将在淬火的运行产品上测量晶体-液体界面的二面角，以量化晶界润湿和合金熔体连通性。 拟定的起始材料是宅基地L5普通球粒陨石。 实验将首先进行使用活塞缸技术，以建立最佳的条件，实现纹理平衡，并检查在0.5至4 GPa范围内的压力的影响。 研究的第二阶段将尝试在多砧装置中将工作扩展到更高的压力。 所提出的研究结果将对从南极地幔中提取岩心的模型产生重要的物理约束。