Thông tin chung
  English
  Đề tài NC khoa học
  Bài báo, báo cáo khoa học
  Hướng dẫn Sau đại học
  Sách và giáo trình
  Các học phần và môn giảng dạy
  Giải thưởng khoa học, Phát minh, sáng chế
  Khen thưởng
  Thông tin khác
  Tài liệu tham khảo
  Hiệu chỉnh
 
Số người truy cập: 107,314,451

 Ultra-wide effective absorption bandwidth of Cu, Co, and Ti co-doped SrFe12O19 hexaferrite
Tác giả hoặc Nhóm tác giả: P.T.Tho, T.A.Xuan, N.Tran, N.Q. Tuan, W.H.Jeong, S.W.Kim, D.T.Quang, V.D.Nguyen, T.N.Bach, T.D.Thanh, D.T. Khan, B.W.Lee
Nơi đăng: Ceramics International (J); Số: Volume 48, Issue 19, Part A;Từ->đến trang: 27409-27419;Năm: 2022
Lĩnh vực: Khoa học; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
Cu, Co, and Ti elements were co-doped to SrFe12O19 (SrFe12-2xCux/2Cox/2TixO19, x = 0, 0.05, 0.10, and 0.15) and its physical properties as well as the effects of physical properties on the microwave absorption performance were studied in detail. All samples showed fairly good microwave absorption performance in reflection loss (RL) and effective absorption bandwidth (EAB). For RL, with a thickness of 0.75 mm, all the samples could absorb about 99.99% of the incident microwave. Besides good RL, the enhancement of EAB to reach an ultra-wide frequency range should be noted. Three samples of x = 0, 0.05, and 0.15 could achieve the EAB values of ~10 GHz. Interestingly, the x = 0.10 samples could reach the EAB value of 15.9 GHz, meaning that this sample could cover almost all the S, C, X, and Ku bands. These results proved that co-doping of Cu, Co, and Ti could enhance the microwave absorption of SrFe12O19 for practical applications.
ABSTRACT
Cu, Co, and Ti elements were co-doped to SrFe12O19 (SrFe12-2xCux/2Cox/2TixO19, x = 0, 0.05, 0.10, and 0.15) and its physical properties as well as the effects of physical properties on the microwave absorption performance were studied in detail. All samples showed fairly good microwave absorption performance in reflection loss (RL) and effective absorption bandwidth (EAB). For RL, with a thickness of 0.75 mm, all the samples could absorb about 99.99% of the incident microwave. Besides good RL, the enhancement of EAB to reach an ultra-wide frequency range should be noted. Three samples of x = 0, 0.05, and 0.15 could achieve the EAB values of ~10 GHz. Interestingly, the x = 0.10 samples could reach the EAB value of 15.9 GHz, meaning that this sample could cover almost all the S, C, X, and Ku bands. These results proved that co-doping of Cu, Co, and Ti could enhance the microwave absorption of SrFe12O19 for practical applications.
© Đại học Đà Nẵng
 
 
Địa chỉ: 41 Lê Duẩn Thành phố Đà Nẵng
Điện thoại: (84) 0236 3822 041 ; Email: dhdn@ac.udn.vn