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Related Concept Videos

Temperature Dependent Deformation01:12

Temperature Dependent Deformation

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In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
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Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
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Plastic Deformations

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It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
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Biology is a natural science that studies life and living organisms, including their structure, function, development, interactions, evolution, distribution, and taxonomy. The field's scope is extensive and divided into several specialized disciplines, such as anatomy, physiology, ethology, genetics, and many more. All living things share a few key traits, including cellular organization, heritable genetic material and the ability to adapt/evolve, metabolism to regulate energy needs, the...
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When analyzing the deformation of a symmetric prismatic member subjected to bending by equal and opposite couples, it becomes clear that as the member bends, the originally straight lines on its wider faces curve into circular arcs, with a constant radius centered at a point known as Point C. This phenomenon helps to understand the stress and strain distribution within the member more clearly.
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Related Experiment Video

Updated: Feb 2, 2026

Applying Dynamic Strain on Thin Oxide Films Immobilized on a Pseudoelastic Nickel-Titanium Alloy
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Titanium-oxide based nanoscale and embeddable subzero temperature sensor using MIT deformation characteristics.

Chuljun Lee1, Myungjun Kim1, Sang-Mo Koo1

  • 1Department of Electronic Materials Engineering, Kwangwoon University, 20 Kwangwoon-ro, Seoul 01897, Republic of Korea.

Nanotechnology
|November 14, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed a nanoscale subzero temperature sensor using a titanium-oxide based metal-insulator-transition (MIT) device. This novel sensor leverages MIT deformation for accurate subzero temperature detection with high linearity and sensitivity.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Sensor Technology

Background:

  • Accurate subzero temperature sensing is crucial for various applications.
  • Existing sensors may face limitations in terms of size, embeddability, or performance at low temperatures.
  • Titanium-oxide based metal-insulator-transition (MIT) devices offer unique electrical properties.

Purpose of the Study:

  • To propose and investigate a nanoscale, embeddable subzero temperature sensor.
  • To utilize the metal-insulator-transition (MIT) phenomenon in titanium-oxide for subzero temperature detection.
  • To evaluate the sensing properties of the proposed device.

Main Methods:

  • Fabrication of a nanoscale two-terminal MIT device using titanium-oxide.
  • Characterization of the MIT device's behavior, specifically focusing on MIT deformation at subzero temperatures.
  • Measurement of current levels as a function of temperature to establish sensing characteristics.

Main Results:

  • Observed a distinct change in MIT characteristics (from abrupt to gradual) at subzero temperatures, termed MIT deformation.
  • Demonstrated that subzero temperatures can be reliably detected by monitoring current levels.
  • The sensor exhibited desirable properties including high linearity and appropriate sensitivity.

Conclusions:

  • Titanium-oxide based MIT devices are suitable for nanoscale and embeddable subzero temperature sensing.
  • The observed MIT deformation provides a viable mechanism for subzero temperature detection.
  • The sensor's CMOS process compatibility, cost-effectiveness, and nontoxicity make it a promising candidate for on-chip integration.