Some Elastic Compliances of Single Crystal Rutile From 25 to 1000 °C

Area of Science:

• Materials Science
• Solid Mechanics
• Crystallography

Background:

• Young's modulus is a fundamental material property.
• Understanding temperature-dependent elastic properties is crucial for material design.
• Rutile is a significant titanium dioxide polymorph.

Purpose of the Study:

• To determine Young's modulus for rutile across a range of temperatures.
• To investigate the temperature dependence of specific elastic compliances in rutile.
• To extend previous room-temperature measurements to higher temperatures.

Main Methods:

• Experimental determination of Young's modulus for eight rutile specimens.
• Measurements conducted at temperatures up to 1000 °C.
• Utilized a methodology consistent with prior room-temperature studies.

Main Results:

• Young's modulus was successfully measured as a function of temperature.
• Four elastic compliances (S11, S33, 2S13 + S44, and s11 - S12 - S66/2) were determined.
• Temperature-dependent elastic behavior of rutile was characterized.

Conclusions:

• The temperature dependence of rutile's elastic properties was elucidated.
• The study provides valuable data for high-temperature applications of rutile.
• The findings contribute to a comprehensive understanding of rutile's mechanical behavior.