࠙◊✲㒊ࠚ ◊ ✲ ㄢ 㢟 ྡ እ㒊ሙບ㉳⢊య⢊ᮎ෬㔠ࣉࣟࢭࢫࡼࡿᮦᩱ㛤Ⓨࡢᇶ♏ᛂ⏝ ◊✲௦⾲⪅ྡ ᮾᏛ࣭㔠ᒓᮦᩱ◊✲ᡤ࣭ᚋ⸨ Ꮥ ◊✲ศᢸ⪅ྡ ᮾᏛ࣭㔠ᒓᮦᩱ◊✲ᡤ࣭ఀ⸨ ᬡᙪ ᮾᏛ࣭㔠ᒓᮦᩱ◊✲ᡤ࣭ୟ ᏹ 1. ࡣࡌࡵ ⢊య⢊ᮎ෬㔠ࣉࣟࢭࢫ࠾ࡅࡿ◊✲ࡢ᭱ඛ➃ࡣᛴ㏿ᣑࡀࡾࡘࡘ࠶ࡾࠊᪧ᮶ࡢ⢊య⢊ᮎ෬㔠ࣉࣟࢭࢫࢆ㉸࠼ ࡓࠊ᪂ࡓ࡞㡿ᇦධࡾࡘࡘ࠶ࡿࠋእ㒊ሙບ㉳ࠊࡍ࡞ࢃࡕ㟁ὶࡢ┤ὶࣃࣝࢫ㏻㟁㧗ᅽຊ༳ຍࢆే⏝ࡋࡓ㏻㟁 ↝⤖ἲࡣࠊ⢊ᮎヨᩱࡢᛴ㏿ຍ⇕ࡼࡾࠊ↝⤖యࢆ▷㛫࡛⦓ᐦ࡛ࡁࡿࡇࡽࠊ㏆ᖺୡ⏺୰ࡢ◊✲⪅ὀ┠ ࡉࢀ࡚࠸ࡿࠋ ㏻㟁↝⤖ἲࢆ⏝࠸࡚ᚤ⣽ᵓ㐀ࢆ⢭⦓ไᚚࡋࡓᮦᩱࡣࠊ༟㉺ࡋࡓᶵᲔⓗࠊᏛⓗ≉ᛶࢆ♧ࡍࠋࡇࢀࡽࡢᮦᩱ ࡀᣢࡘࠊ㧗◳ᗘࠊ㧗ᙉᗘࠊ⪏⇕ࠊ⪏㣗࠾ࡼࡧ⪏ᦶ᧿ᛶࡣࠊࡢ↝⤖ἲ࡛ྜᡂࡋࡓᮦᩱࡣぢࡽࢀ࡞࠸ඃࢀࡓ≉ ᛶ࡛࠶ࡿࠋ㏻㟁↝⤖ἲࡣࠊ࠸ࡲࡸ⢊య⢊ᮎ෬㔠ࣉࣟࢭࢫ࠾ࡅࡿ㔜せ࡞⨨ࢆ༨ࡵ࡚࠾ࡾࠊᵓ㐀⏝ᮦᩱࠊᶵ⬟ ᛶᮦᩱࠊ⇕㟁ᮦᩱࠊ⏕యᮦᩱࠊ㏱᫂ගᏛᮦᩱࠊ㔠ᒓ࢞ࣛࢫᮦᩱ࡞ࠊᖜᗈ࠸ศ㔝ࡢᮦᩱᛂ⏝ࡉࢀ࡚࠸ࡿࠋ୍ ᪉࡛ࠊᡤᮃࡢ≉ᛶࢆᣢࡗࡓᮦᩱࢆ㛤Ⓨࡍࡿࡓࡵࡣࠊ㏻㟁↝⤖ἲ࠾ࡅࡿ↝⤖࣓࢝ࢽࢬ࣒ࡢゎ᫂ࠊ᭱᪂ࡢ⢊ య⢊ᮎ෬㔠ࣉࣟࢭࢫᇶ࡙ࡃᮦᩱ㛤ⓎࣉࣟࢭࢫᏛࡢᵓ⠏ࡀᛴົ࡛࠶ࡿࠋ ᮏ࣮࣡ࢡࢩࣙࢵࣉ࡛ࡣࠊእ㒊ሙບ㉳⢊య⢊ᮎ෬㔠ࣉࣟࢭࢫ࠾ࡅࡿᮦᩱ㛤Ⓨἲࢆ☜❧ࡍࡿࡓࡵࡩࡉࢃࡋ࠸ ウㄽࡢሙࢆࠊᅜෆእࡢ⢊య⢊ᮎ෬㔠◊✲⪅ᥦ౪ࡍࡿࡇࢆ┠ⓗࡍࡿࠋ 2. ◊✲⤒㐣 ᖹᡂ 23 ᖺᗘ࠾ࡼࡧᖹᡂ 24 ᖺᗘ㛤ദࡋࡓ࣮࣡ࢡࢩࣙࢵࣉ࡛ࡣ࠾ࡼࡑ 60 ྡᙉࡢ◊✲⪅ࡀཧຍࡋࡓࠋ ࡇࢀࡲ࡛ࠊ ᵓ㐀ᮦᩱࠊᶵ⬟ᛶᮦᩱ (⇕㟁ᮦᩱࠊ࢜ࣥఏᑟయࠊ☢ᛶᮦᩱ)ࠊ㏱᫂↝⤖య࡞ࡢྜᡂ㛵ࡍࡿ᭱᪂ࡢ◊✲ᡂᯝ ࢆࡣࡌࡵࠊእ㒊ሙບ㉳ୗ࠾ࡅࡿ↝⤖ᶵᵓ㛵ࡍࡿᇶ♏ⓗ࡞ウㄽࡸࠊእ㒊ሙບ㉳⢊య⢊ᮎ෬㔠ࣉࣟࢭࢫ㛵ࡍ ࡿ⨨ᢏ⾡ࡘ࠸࡚ࠊάⓎ࡞ウㄽࡀ⾜ࢃࢀ࡚ࡁࡓࠋཧຍ⪅ࡽࡣࠊኚ᭷ព⩏࡞◊✲࡛࠶ࡾࠊ⥅⥆㛤ദࢆᮃ ࡴኌࡀࡀከࡗࡓࠋ ᙜ㒊㛛ࡢ┤㏆ࡢ◊✲ᡂᯝࡋ࡚ࠊ㏱᫂↝⤖యࡸ㞴↝⤖ᛶ⢊ᮎࡢ⾲㠃ಟ㣭ᢏ⾡㏻㟁↝⤖ࢆ⤌ࡳྜࢃࡏࡓ᪂ࡓ ࡞ᮦᩱ㛤Ⓨᡭἲࡘ࠸࡚ࠊヰ㢟ࢆᥦ౪ࡋ࡚ࡁࡓࠋ௦⾲⫼ⓗ࡞◊✲ᡂᯝࡢෆᐜࢆୗググࡍࠋ • ࣍࢘≀ࡣࠊᚑ᮶ࡢ↝⤖ἲ࡛ࡣ⦓ᐦࡀᅔ㞴࡛࠶ࡿࠋᙜ㒊㛛࡛ࡣࠊTiN-TiB2 ࡸ SiO2/BN ࡞」ྜ⣔࠾࠸ ࡚ࠊ⦓ᐦ࡞↝⤖యࢆྜᡂࡍࡿࡇᡂຌࡋࠊ㧗࠸◳ᗘ࠾ࡼࡧ㠎ᛶࢆୡ⏺ඛ㥑ࡅ࡚ሗ࿌ࡋࡓࠋ≉ࠊ㞴↝ ⤖ᛶ⢊ᮎࡢ⾲㠃ࢆᏛẼ┦ᯒฟἲࡼࡾಟ㣭ࡋࠊ㏻㟁↝⤖⤌ࡳྜࢃࡏࡿࡇࡼࡾࠊ↝⤖ᛶࡔࡅ࡛࡞ࡃ ᶵᲔⓗ≉ᛶࢆ㣕㌍ⓗྥୖ࡛ࡁࡿࡇࢆ♧ࡋࡓࠋ • ᕼᅵ㢮㓟≀ࡣࠊ㧗ຠ⋡Ⓨගᮦᩱࡋ࡚ᮇᚅࡉࢀ࡚࠸ࡿࡀࠊ⼥Ⅼࡀ㧗ࡃ༢⤖ᬗᡂ㛗ࡀ㞴ࡋ࠸ࠋ୍᪉ࠊከ⤖ ᬗ㏱᫂యࡢస〇ࡣࠊࢼࣀࢧࢬࡢ⢊ᮎࢆ‽ഛࡍࡿᚲせࡀ࠶ࡾࠊ㧗࠸㏱㐣⋡ࢆ♧ࡍ↝⤖యࢆྜᡂࡍࡿࡢࡀ 㞴ࡋࡗࡓࠋᙜ㒊㛛࡛ࡣࠊ㏻㟁↝⤖ᢏ⾡ࢆ⏝࠸ࡿࡇ࡛ࠊᕷ㈍ࡢ Lu2O3 ⢊ᮎࡽᴟࡵ࡚㧗࠸㏱㐣⋡ࢆ᭷ࡍ ࡿ㏱᫂ Lu2O3 ↝⤖యࡢྜᡂᡂຌࡋࠊࢩࣥࢳ࣮ࣞࢱࡸ࣮ࣞࢨ࣮፹㉁ࡢᛂ⏝ࡀᮇᚅࡉࢀࡿࠋ － 10 － ᮏ࣮࣡ࢡࢩࣙࢵࣉࡣࠊ2013 ᖺ 12 ᭶ 5 ᪥㹼6 ᪥ࡢ᪥⛬࡛ࠊ㔠ᒓᮦᩱ◊✲ᡤ 2 ྕ㤋ㅮᇽ࡚㛤ദࡋࡓࠋⓎ⾲௳ᩘ ࡣ 22 ௳࡛࠶ࡿࠋཧຍ⪅ࡣࡢ 107 ྡ࡛࠶ࡗࡓ (ึ᪥ 58 ྡࠊ᪥┠ 49 ྡ)ࠋᅗ 1 ࠊᮏ࣮࣡ࢡࢩࣙࢵࣉ࡛సᡂ ࡋࡓㅮ₇せ᪨㞟ᙜ᪥ࡢ◊✲ࡢᵝᏊࡢ┿ࢆ♧ࡍࠋ ᅗ1 ᮏ࣮࣡ࢡࢩࣙࢵࣉㅮ₇ண✏㞟ᙜ᪥ࡢ◊✲ࡢᵝᏊࠋ ᮏ࣮࣡ࢡࢩࣙࢵࣉ࠾ࡅࡿ࡞ヰ㢟ࡘ࠸࡚ࠊୗグࡲࡵࡓ (ᩗ⛠␎, Ⓨ⾲㡰)ࠋ◊✲୰ࡢࠊⓎ⾲࠾ࡼࡧウ ㆟ࡢᵝᏊࡶేࡏ࡚♧ࡍ (ᅗ 2)ࠋ ᢏ⾡㛤Ⓨ ᭱㏆ࡢ SPS ሗ࠾ࡼࡧ SPS ᥋ྜᢏ⾡ 㬍⏣ṇ㞝 (ᰴᘧ♫࢚ࢾࢪ࢙࣮࢚ࢫ) SPS ᢏ⾡ࡢ⏝㏵㛤Ⓨ ➉㐍୍ (ᰴᘧ♫ࢩࣥࢱ࣮ࣛࣥࢻ) ከ㍈㏻㟁↝⤖ἲࡑࡢᛂ⏝ ◁ᮏᕷ (ᰴᘧ♫࢝ࢿ) ࣃࣝࢫ㏻㟁ࡼࡿ▷㛫᥋ྜᢏ⾡ࡢ㛤Ⓨ ᑿᓮබὒ (⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ) ᶵ⬟ᛶᮦᩱ SPS ᡂᙧࡋࡓ Al/ࢲࣖࣔࣥࢻ」ྜᮦᩱࡢ ⇕≀ᛶཬࡰࡍࢲࣖࣔࣥࢻࡢࣂ࣮ࣔࢲࣝ࡞ ⢏ᗘศᕸࡢᙳ㡪 ᕳ㔝ຬ႐㞝 (᭷㝈♫ MSP) SPS ࢆά⏝ࡋࡓ⇕㟁ኚᮦᩱࡢ㛤Ⓨ ᳃ Ꮥ㞝 (≀㉁࣭ᮦᩱ◊✲ᶵᵓ) ࿘ᮇⓗ୍㍈ᅽຊୗ࡛ࡢࣃࣝࢫ㏻㟁↝⤖ࡼࡿ Bi2Te3 ⣔⇕㟁ᮦᩱࡢస〇 ᕝ⿱அ (ᓥ᰿Ꮫ) ㏻㟁↝⤖ἲࢆ⏝࠸ࡓ Li2S-FeSx-C 」ྜయࡢస〇 ࡑࡢ㟁ụ≉ᛶ ➉ෆᡂ (⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ) SPS ἲࢆ⏝࠸ࡓ⇕Ⓨ㟁ࢳ࣮ࣗࣈࡢస〇 Ⳣ㔝 ຮ (ࣃࢼࢯࢽࢵࢡᰴᘧ♫) － 11 － ᅗ2 Ⓨ⾲࠾ࡼࡧウ㆟ࡢᵝᏊࠋ ࣃࣝࢫ㏻㟁↝⤖ἲࢆ⏝࠸ࡓ」ྜ☢▼ᮦᩱࡢྜᡂ ⸨ᖿኵ (㜰Ꮫ) SPS ἲࢆ⏝ࡋࡓளඹᬗ Cu-Zr ྜ㔠⥺ᮦࡢ㛤Ⓨ (➨ሗ) ᮧᯇᑦᅜ (᪥ᮏ࢞ࢩᰴᘧ♫) CNT ศᩓ Al2O3 ࢭ࣑ࣛࢵࢡࢫࡢᨺ㟁ࣉࣛࢬ࣐↝⤖ ከࠎぢ⣧୍ (ᶓᅜ❧Ꮫ) ㏱᫂ࢭ࣑ࣛࢵࢡࢫ ࣑ࣝࢼࡢᨺ㟁ࣉࣛࢬ࣐↝⤖୰㉳ࡁࡿືⓗ⢏ᡂ㛗 㔠 Ⅸ⏨ (≀㉁࣭ᮦᩱ◊✲ᶵᵓ) ᨺ㟁ࣉࣛࢬ࣐↝⤖ (SPS) ἲ࡛ᚓࡽࢀࡓ㏱ගᛶ࣑ࣝࢼ↝⤖యࡢᚤ⣽⤌⧊ࡢẚ㍑ ᕝཎṇ (ᐩኈ㟁Ἴᕤᶵᰴᘧ♫㸧 PECS ࠾ࡅࡿ⣧≀Ⅳ⣲ࡢᣲື ༡ཱྀ ㄔ (㛗ᒸᢏ⾡⛉ᏛᏛ) 㞴↝⤖ᛶࢭ࣑ࣛࢵࢡࢫ 㧗 ࣭㧗ᙉᗘ (1600°C/800MPa) B4C/CNF ࢭ࣑ࣛࢵࢡࢫࡢࣃࣝࢫ㏻㟁ຍᅽ↝⤖ࡼࡿస〇 ᘅ⏣ (ྠᚿ♫Ꮫ) ㏻㟁ຍᅽ↝⤖ࡼࡿ TiC-SiC 」ྜࢭ࣑ࣛࢵࢡࢫࡢྜᡂࡑࡢᶵᲔⓗᛶ㉁ ᮡᒣ㔜ᙲ (⛅⏣┴⏘ᴗᢏ⾡ࢭࣥࢱ࣮) Perspective for fabrication of TiB2-B13C2 composites by means of SPS Marta Ziemnicka-Sylwester (ᾏ㐨Ꮫ) ࢼࣀ⢊ᮎ WC ࡢ SPS ↝⤖ᣲື 㯮ᕝ୍ဢ (ᾏ㐨Ꮫ) 㧗ᅽ SPS ࡼࡿ⦓ᐦ࡞ Į-Si3N4 ࡢ↝⤖ ᳃ ṇ (㱟㇂Ꮫ) 㠀ᬗ㉁❅ࢣ⣲ࢼࣀ⢊ᮎࡢ SPS ↝⤖ ᇼ⏣ᖿ๎ (⏘ᴗᢏ⾡⥲ྜ◊✲ᡤ) ㏻㟁↝⤖ἲࡼࡿ㧗ᐦᗘ cBN ᇶࢥ࣏ࣥࢪࢵࢺࡢస〇 ᚋ⸨ Ꮥ (ᮾᏛ㔠ᒓᮦᩱ◊✲ᡤ) 3. ≉➹ࡍࡁ◊✲ᡂᯝ • እ㒊ሙບ㉳⢊య⢊ᮎ෬㔠ࣉࣟࢭࢫ㛵ࡋ࡚ࠊ⌧ᅾࡢ◊✲ືྥࡸ⨨ᢏ⾡㛤Ⓨࠊᮦᩱ㛤Ⓨࡢᒎᮃࢆ㆟ㄽ࡛ࡁ ࡓ • ᙜ◊✲㒊㛛ࡢ┤㏆ࡢ◊✲ᡂᯝࡋ࡚ࠊCVD ἲ SPS ἲࢆ⤌ࡳྜࢃࡏࡓ㞴↝⤖ᛶ cBN ⢊ᮎࡢ↝⤖ᢏ⾡㛵 ࡍࡿ᪂ࡓ࡞ᮦᩱ㛤Ⓨᡭἲࡘ࠸࡚ࠊࢥ࣑ࣗࢽࢸヰ㢟ᥦ౪ࡋࡓࠋ • ཧຍ⪅ྠኈࡀウㄽࢆ㏻ࡌ࡚࠸ࡢぢ㆑ࢆ῝ࡵࠊぶ╬ࢆᅗࡿࡇ࡛ࠊࡼࡾᙉᅛ࡞◊✲ࢿࢵࢺ࣮࣡ࢡࢆᙧᡂ ࡍࡿࡇࡀ࡛ࡁࡓ (ᅗ 4)ࠋ － 12 － ᅗ4 ᮏ࣮࣡ࢡࢩࣙࢵࣉཧຍ⪅ࡢ㞟ྜ┿ࠋ 4. ࡲ ࡵ E ᮏ࣮࣡ࢡࢩࣙࢵࣉ࡛ࡣࠊእ㒊ሙບ㉳⢊య⢊ᮎ෬㔠ࣉࣟࢭࢫ㛵㐃ࡋࡓศ㔝࡛ά㌍ࡍࡿᅜෆእࡢ◊✲⪅ࡀ୍ྠ ࡋࠊࡑࢀࡒࢀࡢศ㔝࠾ࡅࡿ᭱᪂ࡢ◊✲ᡂᯝሗ࿌ࢆඖ㜏㐩࡞ウㄽࢆࢃࡋࡓࠋእ㒊ሙບ㉳⢊య⢊ᮎ෬㔠 ࣉࣟࢭࢫ㛵ࡋ࡚ࡣࠊᇶ♏ᛂ⏝ࡢ୧᪉ࡢഃ㠃ࡽάⓎ㆟ㄽࡍࡿሙࡀᚲせࡉࢀ࡚࠾ࡾࠊᮏ࣮࣡ࢡࢩࣙࢵࣉ ࡢᯝࡓࡍᙺࡣࡁ࠸ࠋ◊✲ᚋࡢࣥࢣ࣮ࢺ࡛ࡣࠊ㏻㟁↝⤖ᢏ⾡ࢆ⏝࠸ࡓᮦᩱ㛤Ⓨ࠾ࡼࡧᐇ⏝≉ࡋࡓ ࣮࣡ࢡࢩࣙࢵࣉࡢ㛤ദࢆᮃࡴኌࡀᙉࡗࡓࠋ ௦⾲ⓗ࡞◊✲Ⓨ⾲ㄽᩥ [1] M. Kitiwan, A. Ito, T. Goto, B deficiency in TiB2 and B solid solution in TiN in TiN-TiB2 composites prepared by spark plasma sintering. Journal of the European Ceramic Society 32(16) (2012) 4021-4024. [2] Z. He, R. Tu, H. Katsui, T. Goto, Synthesis of SiC/SiO2 core-shell powder by rotary chemical vapor deposition and its consolidation by spark plasma sintering. Ceramics International 39(3) (2013) 2605-2610. [3] J.F. Zhang, R. Tu, T. Goto, Precipitation of Ni and NiO nanoparticle catalysts on zeolite and mesoporous silica by rotary chemical vapor deposition. Journal of The Ceramic Society of Japan 121 (2013) 891-894. [4] L.Q. An, A. Ito, T. Goto, Transparent Lu3NbO7 bodies prepared by reactive spark plasma sintering and their optical and mechanical properties. Ceramics International 39(1) (2013) 383-387. [5] L.Q. An, A. Ito, T. Goto, Fabrication of transparent Lu2Hf2O7 by reactive spark plasma sintering. Optical Materials 35(4) (2013) 817-819. [6] M. Kitiwan, A. Ito, T. Goto, Spark plasma sintering of TiN-TiB2 composites. Journal of the European Ceramic Society 34 (2014) 197-203. [7] Z. He, H. Katsui, R. Tu, T. Goto, High-hardness and ductile mosaic SiC/SiO2 composite by spark plasma sintering. Journal of the American Ceramic Society 97 (2014) 681-683. [8] E. Cheng, H. Katsui, R. Tu, T. Goto, Rod-like eutectic structure of arc-melted TiB2–TiCxN1íx composites, Journal of the European Ceramic Society (accepted). [9] L.Q. An, A. Ito, T. Goto, Effect of LiF addition on spark plasma sintering of transparent Nd-doped Lu2O3 bodies. Journal of Asian Ceramic Societies (accepted). － 13 －
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