Page 26 - 《精细化工》2023年第4期

g712g ㇫㏳ࡃጒ FINE CHEMICALS す 40 ࢤ

㕄ₐܴ㻿喑ӊ䲍ϸ䉕⮱⩢ၽᲮࡃᝃ⩹䲏Ხࡃ㶝ۼᲒ ࣺᄱᢌ㕄ౕ 14.7 GHz ̸ͧ–57.8 dB喑㔹ࣇᏓϲͧ 1.9
॥ᩣ⩢ⷮ∏ȡWANG ぶ [54] 㐀व䲆⩢㏧͊ឭᱜݣิγ mm ȡₑใ喑 Ⴐ Й ⮱ᰶ᩵ ॥ᩣ ፓც㺳 Ⰳ㠰 డ ͧ
̭⻺ᴁᕔ⪼Ⅱ SiC ㏠ㆠ㏑㐡喑ఫ 5a ͧ䄒ฺव㏑㐡⮱ 12.5~18.0 GHz喑䕇䓴ఫ 5b जВⰸܧ喑PCS-10.0 ౕ
TEM ఫ喑जВ⌲ẇౝⰸܧ喑SiC ㏠ㆠ㏑㐡⮱Ꭰ౴Ⱑ 11.5~14.5 GHz Z in /Z 0 ᰡᣒ䓾 1喑ϻ㔹ڤᰶᰡສ⮱䭨ោ
ᒱͧ 200 nm喑ౕ㏑㐡㶕䲏⊯㺳ᰶ 2~5 nm ⮱ⷠᅯȡ ࡦ䙺喠ఫ 5c ͚ᵦᢛ㐆Ⴧ䶾⢴̸䃎ツᓄݝ⮱㶝ۼ፥᪝
䄒ฺव㏑㐡ౕ 2~18 GHz ڲڤᰶхᐯϸ⩢ᕔ㘪হ⩢ ̻䶾⢴⮱ӊ䊃ᕔ㶕ᬻ喑PCS-10.0 ฺव㏑㐡ڤᰶᰡ倅
ⷮ∏॥ᩣᕔ㘪ȡڣ͚喑⩞ 10%喍䉕䛼ܳ᪝喎㖇ⷠ⵲ ⮱㶝ۼ፥᪝喑̻ጟ្䖀⮱ SiC ㏠ㆠ⩢ⷮ॥ᩣᱽ᫆Ⱕ
☤喍PCS喎ݣิ⮱ SiC ㏠ㆠ㏑㐡喍PCS-10.0喎⮱ᰭᄼ ℁喑ڣ㐩व⩢ⷮᕔ㘪ᰭສȡ

ఫ 5 w(PCS)=10%ᬣ⮱ SiC ㏠ㆠ㏑㐡⮱ TEM ఫ喍a喎喠ࣇᏓͧ 1.9 mm ᬣ喑̺ह PCS 䉕䛼ܳ᪝⮱ SiC ㏠ㆠ㏑㐡⮱ Z in /Z 0
թ喍b喎হ 2~18 GHz ڲ⮱㶝ۼ፥᪝喍c喎 [54]
Fig. 5 TEM images of SiC nanofibers at w(PCS)=10% (a); Z in /Z 0 value of SiC nanofibers obtained from different PCS mass
fractionsratios at thickness of 1.9 mm (b) and attenuation constant in 2~18 GHz (c) [54]

䮑 SiC NFs ใ喑ⵁ⾣ϧঅᄦ䲆⩢㏧͊ⷠࡃ➖হ ౴࠭ܳ᪐ᄦ⩢ⷮ∏ᒏ᜽ф็⮱᪐ᄱ◦喑⩢ⷮ∏㷘็
⅛ࡃ➖㏠ㆠ㏑㐡Ό䔈㵹γⵁ⾣ȡWANG ぶ [57] 䕇䓴䲆 ⁎᪐ᄱ㔹⊵㕄㘪䛼喑๔๔᣽ࡴγᱽ᫆⮱॥∏ᕔ㘪ȡ
⩢㏧͊হ☚ั⤳ݣิγ䒨䉕ᴁᕔ SiCN NFsȡ䄒ฺव 2.4 ็ᅯฺव㏠ㆠ㏑㐡
ᱽ̻᫆ SiC NFs ݣิ̺ह͸ัͧ喟ᄳ SiC NFs ౕ⅛ ̷ౕ䔝ⵁ⾣͚喑᝭ݣิ⮱॥ᩣݯᱽ᫆็ᆋλࢂ
⅁⅁ⅈ͚և倅⍖ั⤳ᑂڒ⅛ٰ㉍喑̻э㐌⮱ SiC 䮣 ᅯ㐀Ჱ喑఍㔹喑ग㘪ౕⰥᒀ⾱⮱䶾⢴㠰డڲ჋⣝ᰭ
⨤㏑㐡Ⱕ℁喑ڣౕ㑍㐂ȠᑜᰟȠរ䒙হៅऍ⮱ᗲۢ Ҡ⮱䭨ោࡦ䙺喑ᒵ䯫ౕ䒰㪱⮱⊯ᅯࣇᏓ̸ౕ䒰ც⮱
̸᭫⹧ܧᰡສ⮱ᴁ䴔ᕔ喑Вࣷхᐯ⮱⩢ⷮ∏॥ᩣᕔ 䶾ፓ̷჋⣝倅᩵⮱⩢ⷮ∏॥ᩣȡ̭ψⵁ⾣䃮ᬻ喑ڤ
㘪ȡڣᰭᄼࣺᄱᢌ㕄जѻ㜠í53.1 dB喑ᰶ᩵॥ᩣፓ ᰶᷜᏓ䭨ោ⮱ࣹᅯᝃ็ᅯ㐀Ჱ᭜ᩦ઱䭨ោࡦ䙺ᕔ㘪
ცͧ 5.6 GHz喑㔹⊯ᅯࣇᏓϲ 1.95 mmȡSiCN NFs হ෋ᑧᓛ∏॥ᩣᕔ㘪⮱ᰶ᩵᝸⃢ [60] ȡ̻Ⱋݺ្䖀⮱
хᐯ⮱ MA ᕔ㘪᭜⩞λᱽ᫆ڲ䘕 CȠSiC হ Si 3 N 4 ⮱ ࢂᅯ॥ᩣݯⰥ℁喑хࡃ⮱ࣹᅯᝃ็ᅯ॥∏ᱽ᫆जВ
ࡼह҉⩕喑ڣ͚⮱ⷠ㏠ㆠ㐀Ჱчᄩ㜡֣ᲮःाᲮࡃ ᭫㦄ᩦ઱䭨ោࡦ䙺হ MA ᕔ㘪ȡ็ᅯ॥ᩣݯ᭜⩞ࡦ
Ꭳ෋ߍϸ⩢ᢌ㕄喑㔹 SiC হ Si 3 N 4 чϔ⩌Ხࡃ͚ᓰ喑 䙺ᅯহ॥ᩣᅯ㏱᜽喑䕇䓴㏱वڤᰶ̺ह⩢ⷮ➦ᕔ⮱
ϔ⩌⩹䲏ᲮࡃВ⊵㕄⩢ⷮ∏ȡ ॥ᩣݯহ㐀ᲱᲒ䃫䃎喑Ҭᰡ็⮱⩢ⷮ∏䔈ڒ็ᅯᱽ
ₑใ喑ⷠࡃ䧩఍ڣ㞜ສ⮱㔽㙽㮭হោ⅔ࡃᕔΌ ᫆ڲ䘕ȡₑใ喑ᓛ∏जВౕ็ᅯ͸䬡⮱⩹䲏̷็⁎
ऄݝⵁ⾣ϧঅ⮱Ꭼ∈ڠ∕ȡ̻ SiC Ⱕ℁喑ⷠࡃ䧩 ᪐ᄱহࣺᄱ喑ϻ㔹ᰶݖλᓛ∏⮱㶝ۼȡ̻ⰥᏁ⮱ࢂ
喍MoC喎ౕ̻ⷠᱽ᫆㕓व᫦䲏ڤᰶ̭Ⴧ⮱х߬喑఍ ᅯ㐀ᲱⰥ℁喑хࡃऻ⮱ࣹᅯ㐀Ჱڤᰶᰡ倅⮱॥ᩣᑧ
ڣౕⷠധҀ͚⮱ᅧᄥᄼλ 10 nm喑जВᰡສ㐀वౕ Ꮣহᰡც⮱॥ᩣ䶾⃢ȡHOU ぶ [61] ౕݣิ็⻺䧮⅔Ҁ
㏠ㆠ㏑㐡͚喑ϻ㔹ౕϑअ⩢ⷮ౧͚чᑂ䊤ᰡ็⮱⩹ ̻ⷠ㏠ㆠ㏑㐡ฺवᱽ᫆⮱ധ⵭̷喑ᣏ⾣γࢂᅯহࣹ
䲏Ხࡃ [58] ȡWANG ぶ [59] 䕇䓴☚㼐Ҭ Mo ःАι⩟ധ ᅯ॥ᩣݯ⮱ᕔ㘪ጛᐯȡⵁ⾣㶕ᬻ喑ࣹᅯ॥ᩣݯڤᰶ
ৗਾ䨹⯽喍ZIF-8喎͚⮱ Zn 䃫䃎γ Mo 2 C/C ฺवᱽ 䒰倅ϸ⩢ᢌ㕄⮱ CNFs ᅯহڤᰶ㞜ສ䭨ោࡦ䙺⮱䧮
᫆喑Mo 2 C ⮱ᅧᄥᄼλ 5 nm喑ⰥᏁ⮱ᰭᄼࣺᄱᢌ㕄 ⅔Ҁᅯᒏ᜽γ⽠Ⴧ⮱㕓व喑ౕⰥहࣇᏓ̸喑ࣹᅯ॥
ͧí60.4 dB喑ᰶ᩵॥ᩣፓცͧ 4.8 GHzȡฺवᱽ͚᫆ ᩣݯ⮱ᕔ㘪ᬻ᭫хλࢂᅯȡ
Mo 2 C ㏠ㆠ䷄ㆿ⮱ႅౕᩦअγᱽ᫆⮱ϸ⩢ᢌ㕄ᱧݣ喑 䧮⅔Ҁ᭜ᠴ䧮᫼হڣЃ̭⻺ᝃ็⻺䔯ᒀ⮱䛾ᆋ
ڣ͚⩢ᄩ⢴ᢌ㕄হःाᲮࡃ䔯Ꮣ䭺ѻ喑ᑂڒγᰡ็ ٰ㉍⮱ฺवࡃव➖喑ౕ॥∏䶳ഌ፥㷘⩕҉ⷮᕔϸ䉕喑
⮱⩹䲏Ხࡃ喑ϻ㔹䉸εγ Mo 2 C/C ฺवᱽ᫆ᰡສ⮱ ڣ͚ښ㻿䧮⅔Ҁ喍࠲᠙ MȠUȠWȠXȠY হ Z ಸ喎
䭨ោࡦ䙺喠ओใ喑Mo 2 C ㏠ㆠ䷄ㆿౕ㏠ㆠ㏬㏑㐡͚⮱ ҉̭ͧ㏱䧮ⷮᱽ᫆喑⩞λڣᑧⷮᮣऱाᐯᕔȠхᐯ