High Fidelity Loudspeakers with Boronized Titanium Diaphragms

Yamamoto T, Tsukagoshi T, Tanaka F, Tohma T, Kimura M. High Fidelity Loudspeakers with Boronized Titanium Diaphragms. In: AES Convention 63. Audio Engineering Society; 1979. Paper 1494. Available from: https://aes.org/publications/elibrary-page/?id=2860

@inproceedings{Yamamoto1979_2860,
  author = {Yamamoto, Takeo and Tsukagoshi, Tsunehiro and Tanaka, Fujio and Tohma, Teruo and Kimura, Masami},
  title = {{High Fidelity Loudspeakers with Boronized Titanium Diaphragms}},
  booktitle = {AES Convention 63},
  note = {Paper 1494},
  year = {1979},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=2860}
}

TY  - CPAPER
TI  - High Fidelity Loudspeakers with Boronized Titanium Diaphragms
AU  - Yamamoto, Takeo
AU  - Tsukagoshi, Tsunehiro
AU  - Tanaka, Fujio
AU  - Tohma, Teruo
AU  - Kimura, Masami
T2  - AES Convention 63
M1  - Paper 1494
PY  - 1979
DA  - 1979/05/06
UR  - https://aes.org/publications/elibrary-page/?id=2860
PB  - Audio Engineering Society
LA  - en
AB  - The boronizing process to titanium is developed to get high quality diaphragms for loudspeakers. A titanium diaphragm is buried in a mixed power of boron, carbon, and sodium carbonate, and heated. By this process, titanium borides in the form of TiB and TiB2 are obtained at the diaphragm surface. Ten minutes of treatment at 1,200 degree Centigrade to a 25µm thickness titanium diaphragm gives a Young's modulus of 2.7 x 1011 N/m2, density of 4.23 x 10 kg/m3 and boronized depth of 5 µm. The E/p of boronized titanium reaches to about three times of titanium. Using high Young's modulus bornonized titanium diaphragms, loudspeakers with wide-range, low-distortion, and excellent transient response can be realized.
ER  -