Development of a method for measuring precise temperature dependence of acoustic properties for langasite-type single crystals

• Project/Area Number: 25420399
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Measurement engineering
• Research Institution: Tohoku University
• Principal Investigator: OHASHI Yuji 東北大学, 金属材料研究所, 助教 (50396462)
• Co-Investigator(Kenkyū-buntansha): KARAKI Tomoaki 富山県立大学, 工学部, 准教授 (10254236)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: 精密超音波計測 / ランガサイト系単結晶 / 音響関連物理定数 / 温度係数 / 圧電デバイス

Outline of Final Research Achievements

In this research, we proposed and demonstrated a method for determining constants and temperature coefficients by a new method using our ultrasonic micro-spectroscopy (UMS) technology combined with the pulse-echo and resonance methods to overcome the problem that some of the constants measured by resonance method have significant errors. The temperature dependences of bulk wave velocities for langasite-type single crystals (CTGS) were measured at around room temperature with the UMS technology and at the temperature range from -30 to 80°C with pulse-echo and resonance methods. The temperature dependences of elastic and piezoelectric constants were determined from the velocities calibrated with the accurate results of the UMS. The gradients of the constants determined were in good agreement with those for the UMS at around room temperatures. We successfully demonstrated a method of determining accurate constants with their temperature coefficients.

Research Products

• [Journal Article] Growth and high-temperature characterization of langasite-family Ca3NbGa3-xAlxSi2O14 single crystals (2015)
  • Author(s): Tomoaki Karaki, Masakazu Kobayashi, Shengjie Song, Tadashi Fujii, Masatoshi Adachi, Yuji Ohashi, and Jun-ichi Kushibiki
  • Journal Title: Jpn. J. Appl. Phys. Volume: 54 Issue: 10S Pages: 10ND07-10ND07
  • DOI: 10.7567/jjap.54.10nd07
  • NAID: 210000145798
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Growth and piezoelectric properties of Ca3Nb(Ga1-xAlx)3Si2O14 (x = 0.25 and 0.50) single crystals (2015)
  • Author(s): Yuui Yokota, Yuji Ohashi, Tetsuo Kudo, Vladimir V. Kochurikhin, Shunsuke Kurosawa, Kei Kamada, and Akira Yoshikawa
  • Journal Title: Jpn. J. Appl. Phys. Volume: 54 Issue: 10S Pages: 10ND13-10ND13
  • DOI: 10.7567/jjap.54.10nd13
  • NAID: 210000145804
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Crystal Growth of Ca3Nb(Ga1-xAlx)3Si2O14 Piezoelectric Single Crystals with Various Al Concentrations (2015)
  • Author(s): Yuui Yokota, Tetsuo Kudo, Yuji Ohashi, Andrey Medvedev, Shunsuke Kurosawa, Kei Kamada and Akira Yoshikawa
  • Journal Title: materials Volume: 8 Issue: 9 Pages: 5597-5605
  • DOI: 10.3390/ma8095264
  • Peer Reviewed / Open Access
• [Journal Article] Acoustical physical constants around room temperature for Ca3TaGa1.5Al1.5Si2O14 single crystal (2015)
  • Author(s): Y. Ohashi, T. Kudo, Y. Yokota, Y. Shoji, S. Kurosawa, K. Kamada and A. Yoshikawa
  • Journal Title: Electronics Lett. Volume: 51 Issue: 24 Pages: 1957-1958
  • DOI: 10.1049/el.2015.2693
  • Peer Reviewed
• [Presentation] 直線集束ビーム超音波材料解析システムを用いたX-cutランガサイト型単結晶の方位決定法の検討 (2016)
  • Author(s): 大橋雄二, 横田有為, 工藤哲男, 庄子育宏, 黒澤俊介, 鎌田圭, 吉川彰
  • Organizer: 圧電材料・デバイスシンポジウム2016
  • Place of Presentation: 東北大学カタールサイエンスキャンパスホール（宮城県仙台市）
  • Year and Date: 2016-02-09
• [Presentation] Dependence of acoustic property on Al substitution for Ca3Ta(Ga1-xAlx)3Si2O14 single crystal (2015)
  • Author(s): Y. Ohashi, T. Kudo, Y. Yokota, Y. Shoji, S. Kurosawa, K. Kamada and A. Yoshikawa
  • Organizer: Symp. Ultrasonic Electronics
  • Place of Presentation: つくば国際会議場（茨城県筑波市）
  • Year and Date: 2015-11-06
  • Int'l Joint Research
• [Presentation] Crystal Growth of Ca3Nb(Ga0.75Al0.25)3O14 Piezoelectric Bulk Single Crystal (2015)
  • Author(s): Y. Ohashi, Y. Yokota, T. Kudo, S. Kurosawa, K. Kamada and A. Yoshikawa
  • Organizer: IEEE International Ultrasonics Symposium
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2015-10-22
  • Int'l Joint Research
• [Presentation] 平面超音波材料解析システムによるCa3Nb(Ga0.75Al0.25)3Si2O14単結晶の音響関連物理定数の測定 (2015)
  • Author(s): 大橋雄二, 横田有為, 工藤哲男, 黒澤俊介, 鎌田圭, 吉川彰
  • Organizer: 第76回応用物理学会秋季学術講演会
  • Place of Presentation: 名古屋国際会議場（愛知県名古屋市）
  • Year and Date: 2015-09-14
• [Presentation] Chemical Composition Characterization of Ca3Ta(Ga0.5Al0.5)3Si2O14 Single Crystal by the Line-Focus-Beam Ultrasonic Material Characterization System (2015)
  • Author(s): Y. Ohashi, T. Kudo, Y. Yokota, Y. Shoji, S. Kurosawa, K. Kamada and A. Yoshikawa
  • Organizer: 20th American Conference on Crystal Growth and Epitaxy (ACCGE-20) and 17th U.S. Biennial Workshop on Organometallic Vapor Phase Epitaxy (OMVPE-17) and The Second 2D Electronic Materials Symposium
  • Place of Presentation: Montana, USA
  • Year and Date: 2015-08-04
  • Int'l Joint Research
• [Presentation] Crystal Growth of Ca3Nb(Ga0.75Al0.25)3O14 Piezoelectric Bulk Single Crystal (2015)
  • Author(s): Y. Yokota, T. Kudo, Y. Ohashi, S. Kurosawa, K. Kamada and A. Yoshikawa
  • Organizer: Joint IEEE Int. Symp. Appl. Ferroelectr. (ISAF), Int. Symp. Integrated Functionalities (ISIF), and Piezoresponse Force Microscopy Workshop (PFM)
  • Place of Presentation: Singapore
  • Year and Date: 2015-05-26
  • Int'l Joint Research
• [Presentation] Homogeneity Evaluation of Ca3Ta(Ga0.5Al0.5)3Si2O14 Single Crystal by the Line-Focus-Beam Ultrasonic Material Characterization System (2015)
  • Author(s): Y. Ohashi, T. Kudo, Y. Yokota, Y. Shoji, S. Kurosawa, K. Kamada and A. Yoshikawa
  • Organizer: Joint IEEE Int. Symp. Appl. Ferroelectr. (ISAF), Int. Symp. Integrated Functionalities (ISIF), and Piezoresponse Force Microscopy Workshop (PFM)
  • Place of Presentation: Singapore
  • Year and Date: 2015-05-26
  • Int'l Joint Research
• [Presentation] ランガサイト系単結晶Ca3NbGa3-xAlxSi2O14の育成と高温特性評価 (2015)
  • Author(s): 宋勝傑, 小林正和, 唐木智明, 藤井正, 安達正利, 大橋雄二, 櫛引淳一
  • Organizer: 圧電材料・デバイスシンポジウム2015
  • Place of Presentation: 東北大学工学部青葉記念会館
  • Year and Date: 2015-02-18 – 2015-02-19
• [Presentation] Ca3Ta(Ga0.5Al0.5)3Si2O14単結晶のAl置換効果による音響特性への影響の検討 (2015)
  • Author(s): 大橋雄二，工藤哲男，横田有為，庄子育宏，黒澤俊介，鎌田圭，吉川彰
  • Organizer: 圧電材料・デバイスシンポジウム2015
  • Place of Presentation: 東北大学工学部青葉記念会館
  • Year and Date: 2015-02-18 – 2015-02-19
• [Presentation] Growth of Langasite-Type Piezoelectric Ca3NbGa3-xAlxSi2O14 Single Crystals (2014)
  • Author(s): T. Karaki, D. Shakunaga, S. Song, M. Kobayashi, T. Fujii, M. Adachi, Y. Ohashi, and J. Kushibiki
  • Organizer: AMF-AMEC-2014
  • Place of Presentation: Shanghai, China
  • Year and Date: 2014-10-26 – 2014-10-30
• [Presentation] Determination Method of Acoustical Physical Constants and Their Temperature Coefficients for Point Group 32 of Trigonal Crystal System (2014)
  • Author(s): Yuji Ohashi, Mototaka Arakawa, Jun-ichi Kushibiki, Masatoshi Adachi
  • Organizer: IEEE Int. Ultrason. Symp.
  • Place of Presentation: Chicago, ILLINOI, USA
  • Year and Date: 2014-09-03 – 2014-09-06
• [Presentation] パルスエコー法と共振法を併用した三方晶系点群３２結晶の音響関連物理定数の温度係数測定法の検討 (2014)
  • Author(s): 大橋雄二，荒川元孝，櫛引淳一，安達正利
  • Organizer: 圧電材料・デバイスシンポジウム2014
  • Place of Presentation: 東北大学青葉記念会館
• [Presentation] ランガサイト系単結晶Ca3NbGa3-xAlxSi2O14の育成 (2014)
  • Author(s): 釈永大智, 呂涛, 宋勝傑, 谷藤智彦, 唐木智明, 藤井正, 安達正利, 大橋雄二, 櫛引淳一
  • Organizer: 圧電材料・デバイスシンポジウム2014
  • Place of Presentation: 東北大学青葉記念会館
• [Presentation] 三方晶系点群３２結晶の音響関連物理定数の温度係数測定法の検討 (2014)
  • Author(s): 大橋雄二, 荒川元孝, 櫛引淳一, 安達正利
  • Organizer: 第61回応用物理学会春季学術講演会
  • Place of Presentation: 青山学院大学