Electrical Effect and Influence Factors of Tourmaline

Lu, Qi; Li, Bowen; Bai, Feng

doi:10.1002/9781119263722.ch10

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…14 Tourmalines present remarkable bulk piezoelectric and pyroelectric properties, besides a unique set of characteristics with immense potential for diverse applications. 15 Unfortunately, size constraints have prevented a more comprehensive investigation of these non-layered silicates, leaving a noticeable research gap that deserves to be timely addressed.…”

Section: Introductionmentioning

confidence: 99%

3D-printed flexible energy harvesting devices designed using non-layered two-dimensional natural tourmaline silicates

Mahapatra,

Tromer,

Jayakumar

et al. 2024

J. Mater. Chem. C

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Section: Introductionmentioning

confidence: 99%

3D-printed flexible energy harvesting devices designed using non-layered two-dimensional natural tourmaline silicates

Mahapatra,

Tromer,

Jayakumar

et al. 2024

J. Mater. Chem. C

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“…Hu et al [9] proposed that the tourmaline anion powder (TAP) contains Al, Na, Fe, and Lu ring-shaped silicate materials and exhibits the characteristics of Be, including good piezoelectric [10], spontaneous polarization, and thermoelectric properties [11]; TAP is extensively used in the environmental protection, electrical, healthcare, and decoration industries. Wang et al [12] used tourmaline to treat contaminated soil, where the observed material effects were obvious.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of an Active Cooling Antirutting Asphalt Mixture

Shuan

Li²,

Xu³

et al. 2020

Advances in Materials Science and Engineering

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To reduce the temperature of asphalt pavements in summer and improve their high-temperature stability, tourmaline anion powder (TAP) was used as a modifier to prepare modified asphalt, which actively cools the pavement. The effects of different TAP contents on the high- and low-temperature performance of modified asphalt and its pavement cooling performance were studied based on the dynamic shear rheometer, low-temperature bending beam rheometer, and indoor rutting plate temperature difference tests; subsequently, the optimum TAP content was determined. Modified asphalt was used to prepare an active cooling antirutting asphalt mixture, and its pavement cooling performance was verified via outdoor lighting tests. High- and low-temperature dynamic modulus and low-temperature semicircular splitting tests were used to evaluate the high- and low-temperature performance; further, freeze-thaw splitting and immersion Marshall tests were performed to evaluate the water stability of the active cooling antirutting asphalt mixture. The results denote that TAP is useful for improving the rutting factor of asphalt. When the TAP content is 16% of the asphalt material, the maximum cooling value of the surface in laboratory tests becomes 5.9°C. When compared with an ordinary asphalt mixture, the dynamic stability of the active cooling antirutting asphalt mixture at medium and high temperatures increased by 18%–22%. The fracture energy can be increased by 12% at low temperatures. The maximum cooling value of the surfaces in outdoor tests is 7.2°C, and the water stability slightly decreases; however, it still satisfies the specification requirements.

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