Zobrazeno 1 - 10
of 105
pro vyhledávání: '"Pornjuk Srepusharawoot"'
Autor:
Yasumin Mingmuang, Narong Chanlek, Masaki Takesada, Viyada Harnchana, Wirat Jarernboon, Pairot Moontragoon, Pornjuk Srepusharawoot, Ekaphan Swatsitang, Prasit Thongbai
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract Aliovalent dopant codoped rutile–TiO2 materials have garnered attention due to their excellent performance properties, characterized by low loss tangent (tanδ), high dielectric permittivity (ε′), and stable ε′ over a broad temperatu
Externí odkaz:
https://doaj.org/article/51ed52ce866c4865b8efe2d26b8bd7f5
Autor:
Jurimart Wongsricha, Kaniknun Sreejivungsa, Noppakorn Thanamoon, Viyada Harnchana, Pornjuk Srepusharawoot, Nutthakritta Phromviyo, Wirat Jarernboon, Prasit Thongbai
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract In this study, we investigated the humidity sensing properties of TiO2-based ceramics doped with tantalum pentoxide (Ta2O5) and indium tin oxide (ITO). Pure TiO2, 1%Ta-doped TiO2 (1%TTO), 1%ITO-doped TiO2 (1%ISTO), and 1%(Ta2O5 + ITO) co-dop
Externí odkaz:
https://doaj.org/article/e0d186c8cb8944f0b34d2457afb32975
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract In this study, we achieved significantly enhanced giant dielectric properties (EG-DPs) in Sc3+–Ta5+ co-doped rutile-TiO2 (STTO) ceramics with a low loss tangent (tanδ ≈ 0.05) and high dielectric permittivity (ε′ ≈ 2.4 × 104 at 1 k
Externí odkaz:
https://doaj.org/article/e119ec6a8d9f44b3aa72830d5348b1a8
Autor:
Jakkree Boonlakhorn, Punpatsorn Suksangrat, Weerachai Sarakorn, Sriprajak Krongsuk, Prasit Thongbai, Pornjuk Srepusharawoot
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-16 (2023)
Abstract A modified sol-gel method was used to successfully produce Na1/2Y1/2Cu3Ti4O12 ceramics with high dielectric permittivity. The dielectric permittivity of Na1/2Y1/2Cu3Ti4O12 ceramics reaches values larger than 104 at room temperature and 1 kHz
Externí odkaz:
https://doaj.org/article/639a686cb2874288966bda4459776c33
Publikováno v:
Materials Research Express, Vol 11, Iss 2, p 026303 (2024)
In this study, we employed a solid-state reaction method to synthesize Ca _0.25 Cu _0.75-x Al _x TiO _3 ceramics, investigating the impact of Al doping at concentrations of x = 0 and 0.0125. Notably, all ceramics exhibited a primary phase of Ca _0.25
Externí odkaz:
https://doaj.org/article/80c8cbf8ecd041db86f91d18c38826e9
Autor:
Theeranuch Nachaithong, Narong Chanlek, Pairot Moontragoon, Pornjuk Srepusharawoot, Prasit Thongbai
Publikováno v:
Results in Physics, Vol 47, Iss , Pp 106334- (2023)
Low dissipation factor (tanδ) and excellent temperature stability of high dielectric permittivity are obtained in Ti1-x(Co1/3Ta2/3)xO2 ceramics, which were prepared using a mixed oxide method. The unit cell of the rutile TiO2 structure expanded due
Externí odkaz:
https://doaj.org/article/3deca247e29844299775f7d0d6cdbb61
Autor:
Jirata Prachamon, Jakkree Boonlakhorn, Narong Chanlek, Nutthakritta Phromviyo, Viyada Harnchana, Pornjuk Srepusharawoot, Ekaphan Swatsitang, Prasit Thongbai
Publikováno v:
Journal of Asian Ceramic Societies, Vol 10, Iss 2, Pp 473-481 (2022)
We present a method for increasing the dielectric constant of CaTiO3/CaCu3Ti4O12 (CTO/CCTO) composites and retaining a low-loss tangent (tanδ) by doping with Ge dopant. The Ge-doped CTO/CCTO composites were fabricated using a one-step processing met
Externí odkaz:
https://doaj.org/article/be15f72cec9f4f68853c457d80be99cc
Publikováno v:
Heliyon, Vol 9, Iss 2, Pp e13583- (2023)
An extremely reduced loss tangent while retaining ultrahigh dielectric permittivity can be successfully obtained in La1.9Sr0.1NiO4 ceramics by doping with Mg2+ ions. A single phase of La1.9Sr0.1NiO4 was detected in all the sintered ceramics, while th
Externí odkaz:
https://doaj.org/article/e7cdf67c13e546418f15809e79c94a2f
Autor:
Pariwat Saengvong, Jakkree Boonlakhorn, Jutapol Jumpatam, Narong Chanlek, Jariyanee Prasongkit, Bundit Putasaeng, Pairot Moontragoon, Pornjuk Srepusharawoot, Prasit Thongbai
Publikováno v:
Heliyon, Vol 9, Iss 1, Pp e12946- (2023)
The effects of sintering conditions on the microstructure, giant dielectric response, and electrical properties of Na1/2Y1/2Cu3Ti3.975Ta0.025O12 (NYCTTaO) were studied. A single phase of Na1/2Y1/2Cu3Ti4O12 and a high density (>98.5%) were obtained in
Externí odkaz:
https://doaj.org/article/384f6289f7284f0eacb507ac8dd7a06d
Autor:
Jakkree Boonlakhorn, Suwit Khongpakdee, Marina Mani, Prachit Khongrattana, Pairot Moontragoon, Prasit Thongbai, Pornjuk Srepusharawoot
Publikováno v:
Results in Physics, Vol 43, Iss , Pp 106086- (2022)
The Li1/2Sm1/2Cu3Ti4O12 ceramic, which is in the ACu3Ti4O12 class, was investigated by means of both experimental and theoretical approaches. In our experiments, it was made via a solid-state reaction. Our XRD measurements revealed that the crystal s
Externí odkaz:
https://doaj.org/article/d5b30add30894ca5aa062d56e652f6e2