Shape Memory Behaviour of PMMA-Coated NiTi Alloy under Thermal Cycle

Samal, Sneha; Kosjakova, Olga; Vokoun, D.; Stachiv, Ivo

doi:10.3390/polym14142932

Cited by 10 publications

(3 citation statements)

References 58 publications

(57 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sample was tested in thermal cycles from room temperature to −100 • C. Tensile experiments that failed in the clamping position are excluded from the data. The sample configure followed the standard from the in-house built Mitter machine [22].…”

Section: Mechanical Characterizationmentioning

confidence: 99%

Physical, Thermal, and Mechanical Characterization of PMMA Foils Fabricated by Solution Casting

et al. 2023

Self Cite

View full text Add to dashboard Cite

The physical, thermal, structural, and mechanical properties of poly(methyl methacrylate) PMMA foils cast from solutions of toluene were investigated by differential scanning calorimetry, optical microscope, Fourier infrared spectroscopy, and dynamical mechanical analysis. The PMMA foils were prepared from a different ratio of PMMA powder with toluene solvent by the solution cast method. The surface features, glass transition temperature, and C-H bonds of foils were investigated and compared with commercial PMMA foil. The mechanical characterization of foils was examined by using static and dynamic loads in axial and transverse modes. The tensile behaviors of the commercial and as-prepared foils were investigated by using a strain rate of 0.01/s. The dynamical behavior of the foils was tested in tensile mode using 0.1 N of stress with a frequency of 1 Hz for the determination of storage, loss modulus, and damping values of the tan delta. A significant shape memory was observed in all of the prepared PMMA foils. The solution cast method allows for tuning the glass transition temperature of polymer foil that could easily integrate with the NiTi alloy phase transition temperature to fabricate a suitable composite structure. Integrating both structures will open the flexibility in bistable actuators in composite structures as a function of thermal cycles.

show abstract

Section: Mechanical Characterizationmentioning

confidence: 99%

Physical, Thermal, and Mechanical Characterization of PMMA Foils Fabricated by Solution Casting

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…In practical experience, three kinds of objects are difficult to scan. One is the transparent object [ 35 ], since the light cannot be reflected from the surfaces directly. Another is objects with ultimate shiny surface [ 36 ].…”

Section: Resultsmentioning

confidence: 99%

Development of a Three-Dimensional Optical Verification Technology without Environmental Pollution for Metal Components with Different Surface Properties

Kuo

Lee³

2022

Materials

View full text Add to dashboard Cite

Nowadays, the optical measuring approach is widely used in the precision machining industry due to high measurement efficiency. In the industry, measuring devices play a crucial role in the field of quality assurance. In practical engineering, the green measurement approach indeed plays an important role in the industry currently. In this study, a state-of-the-art green technique for three-dimensional (3D) optical measurements without environmental pollution is demonstrated, which is an environmentally friendly optical measurement method. This method can perform precise optical measurement without matte coatings. This work dealt with the possibility of measuring four metal components that were not sprayed with anything. The differences in the optical measurement results between with and without matte coatings were investigated and analyzed. It was found that the research result has practical value in the precision machining industry because average size errors of the four measurement objects with different surface properties can be controlled at about 3 µm, 0.1 µm, 0.5 µm, and 9 µm. A technical database with industrial value was established for optical measurements of metal components with different surface properties without matte coatings, which can serve as an alternative to the conventional 3D optical measurement.

show abstract

“…They can be used in medical devices such as stents, orthodontic wires, and even artificial muscles. Additionally, NiTi alloys can be used in aerospace, automotive, and civil engineering for actuators, sensors, and dampers (Samal et al, 2022;Teixeira et al, 2022).…”

Section: Smart Materials Utilized In 4d Printingmentioning

confidence: 99%

4D Printing: Technology Overview and Smart Materials Utilized

Kantaros¹,

Ganetsos²,

Piromalis³

2023

Journal of Mechatronics and Robotics

View full text Add to dashboard Cite

4D printing is a cutting-edge technology that allows for the creation of dynamic, self-assembling structures by utilizing cutting edge, newly introduced smart materials. It builds upon traditional 3D printing by adding the dimension of time, allowing printed objects to change shape or behavior over time. This is achieved through the use of smart materials, such as shape memory alloys or polymers, which respond to external stimuli such as heat or moisture. These materials are engineered to have specific properties that can be triggered by specific conditions such as temperature, humidity, light, or other physical forces. 4D printing enables the creation of structures that can adapt to their environment and perform specific functions, such as objects that change shape in response to temperature changes, or structures that can self-assemble in response to a specific trigger. Overall, 4D printing is an exciting and rapidly advancing technology that has the potential to revolutionize the way we design and create structures. The ability to create structures that can change shape or behavior over time opens up new possibilities for a wide range of applications. As the technology continues to evolve, we can expect to see more innovative uses of 4D printing in a wide range of scientific fields such as architecture, aerospace, and biomedical engineering demanding the creation of highly complex and dynamic structures that can adapt to changing environments.

show abstract

Shape Memory Behaviour of PMMA-Coated NiTi Alloy under Thermal Cycle

Cited by 10 publications

References 58 publications

Physical, Thermal, and Mechanical Characterization of PMMA Foils Fabricated by Solution Casting

Physical, Thermal, and Mechanical Characterization of PMMA Foils Fabricated by Solution Casting

Development of a Three-Dimensional Optical Verification Technology without Environmental Pollution for Metal Components with Different Surface Properties

4D Printing: Technology Overview and Smart Materials Utilized

Contact Info

Product

Resources

About