JP7243291B2 - 粒子被覆方法および粒子被覆装置 - Google Patents
粒子被覆方法および粒子被覆装置 Download PDFInfo
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Description
[粒子被覆装置]
まず、第1実施形態に係る粒子被覆装置について説明する。
前述したように、図1に示す成膜装置2は、チャンバー22と、排気部24と、ガス導入部26と、加熱部28と、を備えている。このような成膜装置2では、チャンバー22内に磁性粒子91を収容し、排気部24によってチャンバー22内を排気した後、ガス導入部26によりガスを導入する。そして、加熱部28によって磁性粒子91を加熱する。この加熱により、チャンバー22内に導入された原料ガスが熱分解され、磁性粒子91の表面に分解物が吸着し、最終的に被膜92が形成される。
前述したように、図1に示す成膜装置2は、チャンバー22と、排気部24と、ガス導入部26と、加熱部28と、を備えている。このような成膜装置2では、チャンバー22内に磁性粒子91を収容し、排気部24によってチャンバー22内を排気した後、ガス導入部26によりガスを導入する。そして、加熱部28によって磁性粒子91を加熱することにより、磁性粒子91の表面に被膜92が形成される。
磁性粒子91としては、硬磁性を有する粒子であってもよいが、好ましくは軟磁性を有する粒子が用いられる。軟磁性を有する粒子は、磁界の有無で粒子の磁化が制御可能であるため、電磁石321、322による磁界発生の有無によって、固定と固定解除とを切り替えることができる。このため、磁性粒子91や被膜付き磁性粒子93の搬送等を容易に行うことができる。
次に、実施形態に係る粒子被覆方法として、図1に示す粒子被覆装置1を用いて磁性粒子91の表面に被膜92を形成する方法について説明する。
図4は、実施形態に係る粒子被覆方法を示す工程図である。
まず、チャンバー22内に磁性粒子91を投入する。磁性粒子91を投入する際には、例えば図1に示す粒子被覆装置1のフランジ23とガス導入部26の支持部材262との間を開放して行うようにすればよい。なお、投入経路は特に限定されない。また、投入の際には、移動可能な磁力発生器を用い、磁性粒子91の固定および固定解除を行いながら磁性粒子91を搬送するようにしてもよい。
次に、チャンバー22内を気密封止し、電磁石321、322に通電する。これにより、電磁石321、322間に磁界が発生し、磁性粒子91に磁力が作用するため、それに伴って磁性粒子91がチャンバー22の内面に固定される。このとき、磁性粒子91は、前述したように、複数が連なるように分布するため、各磁性粒子91の周囲は、比較的隙間が多い状態になる。
次に、排気ポンプ244により、チャンバー22内を排気する。これにより、チャンバー22内が減圧され、真空状態となる。この際、特に排気ポンプ244の稼働時には、チャンバー22内の空気が急激に撹拌されるため、磁性粒子91の舞い上がりが懸念される。しかしながら、本実施形態では、磁性粒子91を磁力で固定しているため、この舞い上がりを抑制することができる。このため、磁性粒子91の舞い上がりに伴う、排気ポンプ244の故障や磁性粒子91の逸失等を抑制することができる。
次に、チャンバー22内に投入した磁性粒子91に前処理を施す。前処理としては、例えばオゾン処理、ラジカル処理、紫外線処理、プラズマ処理、コロナ処理、加熱処理、乾燥処理、溶剤処理等が挙げられる。
なお、前処理は、必要に応じて行えばよく、省略してもよい。
次に、排気部24の図示しないバルブを閉じ、チャンバー22内を封じ切った状態で、チャンバー22内に原料ガス、すなわちプリカーサーを導入する。原料ガスは、磁性粒子91の表面に吸着する。このとき、原料ガスは、磁性粒子91の表面に吸着すると、それ以上、多層には吸着しにくい。このため、最終的に得られる被膜92の膜厚を高精度に制御することが可能である。また、原料ガスは、陰や隙間になる部分にも回り込んで吸着するため、最終的に被膜92を高アスペクト比でも均一に形成することができる。
また、チャンバー22内の圧力は、例えば100Pa以下に設定される。
以上のようにして被膜付き磁性粒子93が得られる。
次に、チャンバー22内の被膜付き磁性粒子93に対して後処理を施す。後処理としては、例えば除電処理、ラジカル処理等が挙げられる。
なお、後処理は、必要に応じて行えばよく、省略してもよい。
次に、電磁石321、322への通電を停止して、チャンバー22内における磁界の形成を停止する。これにより、磁力が消失するので、被膜付き磁性粒子93の固定が解除される。その結果、被膜付き磁性粒子93を自由に搬送等することが可能になる。
その後、被膜92の膜厚が十分であれば、被膜付き磁性粒子93をチャンバー22から取り出して回収する。
一方、被膜92の膜厚が不十分であれば、被膜付き磁性粒子93に対して再度被膜92を形成する。
次に、第2実施形態に係る粒子被覆装置について説明する。
このような配置にした場合でも、第1実施形態と同様の効果が得られる。
次に、第3実施形態に係る粒子被覆装置について説明する。
図7に示す電磁石323は、図6に示す電磁石323と同様、円筒状をなしている。さらに、図7に示す電磁石323の内部325は、原料ガスおよび酸化剤を導通する流路になっている。そして、電磁石323の内部325と外部とが貫通孔324を介して連通している。これにより、原料ガスおよび酸化剤は、それぞれ電磁石323の内部325を介して、複数の貫通孔324からチャンバー22内に供給される。このような供給経路を形成することにより、電磁石323に固定されている磁性粒子91に対して、より直接的に原料ガスや酸化剤を供給することができる。
次に、第4実施形態に係る粒子被覆装置について説明する。
以上のような第4実施形態においても、第1実施形態と同様の効果が得られる。
次に、第5実施形態に係る粒子被覆装置について説明する。
以上のような第5実施形態においても、第1実施形態と同様の効果が得られる。
1.被膜付き磁性粒子の製造
(実施例)
まず、平均粒径3.5μmのFe-Si-Cr系磁性粒子を石英ガラス製のチャンバー内に投入した。そして、チャンバーの外面に装着した永久磁石の磁界による磁力で磁性粒子を固定、保持した。
次に、窒素ガスでチャンバー内を置換した後、排気部に設けたバルブを閉じ、酸化剤としてオゾンを導入した。これにより、原料ガスと酸化剤とを反応させ、被膜付き磁性粒子を得た。
次に、後処理としてオゾナイザーによる除電処理を施した。
チャンバーの外面における永久磁石の装着を省略した以外は、実施例と同様にして被膜付き磁性粒子を得た。
次に、排気経路のフィルターを取り外し、電子顕微鏡によりフィルター表面を観察した。その結果、比較例による被膜付き磁性粒子の製造に際して使用したフィルターには、多数の磁性粒子が捕捉されていた。これに対し、実施例による被膜付き磁性粒子の製造に際して使用したフィルターには、それよりも磁性粒子の捕捉数が十分に少ないことが認められた。
次に、得られた被膜付き磁性粒子のうち、永久磁石の磁界による磁力で集合していた被膜付き磁性粒子のうち、集合物の表層に位置していた被膜付き磁性粒子と、集合物の中心付近に位置していた被膜付き磁性粒子と、をそれぞれ取り出した。そして、被膜付き磁性粒子の表面について、X線光電子分光分析(ESCA : Electron Spectroscopy for Chemical Analysis)により元素組成を評価した。また、併せて、被膜を形成する前の磁性粒子の表面についても、元素組成を評価した。評価結果を表1に示す。
Claims (8)
- 容器内に磁性粒子を入れる工程と、
前記容器内に発生させた磁界による磁力で前記磁性粒子を固定する工程と、
原子層堆積法により、前記磁性粒子の表面に被膜を形成する工程と、
を有し、
前記磁性粒子の表面に前記被膜を形成する前に、前記磁力で前記磁性粒子を固定した状態で、前記磁性粒子に前処理を施す工程を有する、
ことを特徴とする粒子被覆方法。 - 第1の向きの前記磁力で前記磁性粒子を固定する工程と、
原子層堆積法により、前記磁性粒子の表面に被膜を形成し、被膜付き磁性粒子を得る工程と、
前記第1の向きとは異なる第2の向きの前記磁力で前記被膜付き磁性粒子を固定する工 程と、
前記被膜付き磁性粒子の表面に被膜を形成する工程と、
を有する請求項1に記載の粒子被覆方法。 - 前記前処理は、前記磁性粒子の表面を酸化させる処理または前記磁性粒子を乾燥させる処理を含む請求項1に記載の粒子被覆方法。
- 前記磁性粒子の表面に前記被膜を形成した後に、前記磁力で前記被膜が形成された前記磁性粒子を固定した状態で、前記被膜が形成された前記磁性粒子に後処理を施す工程を有する、請求項1ないし3のいずれか1項に記載の粒子被覆方法。
- 前記後処理は、前記被膜が形成された前記磁性粒子の帯電による電荷量を減少させる処理を含む請求項4に記載の粒子被覆方法。
- 磁性粒子を収容する容器と、前記容器内を排気して減圧する排気部と、前記容器内にガスを導入するガス導入部と、を備え、原子層堆積法により、前記磁性粒子の表面に被膜を形成する成膜装置と、
前記容器内に磁界を発生させ、前記磁界による磁力で前記磁性粒子を固定する磁力発生部と、
を有し、
前記磁力発生部は、前記容器の外部に設けられている、
ことを特徴とする粒子被覆装置。 - 前記磁力発生部は、電磁石である請求項6に記載の粒子被覆装置。
- 前記磁力発生部は、前記容器に対して移動可能に設けられている請求項6又は請求項7に記載の粒子被覆装置。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004152686A (ja) | 2002-10-31 | 2004-05-27 | Sekisui Chem Co Ltd | 導電性微粒子の製造装置及び導電性微粒子の製造方法 |
JP2004261747A (ja) | 2003-03-03 | 2004-09-24 | Kawasaki Heavy Ind Ltd | 粉体表面改質方法および装置 |
JP2005501176A (ja) | 2001-07-18 | 2005-01-13 | ザ・リージエンツ・オブ・ザ・ユニバーシテイ・オブ・コロラド | コンフォーマル超薄膜を有する金属含有微粒子の絶縁化及び機能化方法 |
JP2012089510A (ja) | 2011-12-13 | 2012-05-10 | Takayuki Abe | 透明導電性微粒子及びその製造方法 |
JP2014084272A (ja) | 2012-10-26 | 2014-05-12 | Applied Materials Inc | 銅基板上のカーボンナノチューブ成長 |
US20170313437A1 (en) | 2016-04-27 | 2017-11-02 | The Boeing Company | Magnetic carbon nanotube cluster systems and methods |
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WO2016210249A1 (en) * | 2015-06-25 | 2016-12-29 | Vladimir Mancevski | Apparatus and methods for high volume production of graphene and carbon nanotubes on large-sized thin foils |
SG10201606973YA (en) | 2015-08-31 | 2017-03-30 | Ultratech Inc | Plasma-enhanced atomic layer deposition system with rotary reactor tube |
KR20200087186A (ko) * | 2017-11-15 | 2020-07-20 | 야마가타 유니버시티 | 금속 산화물 박막 형성 장치 및 금속 산화물 박막 형성 방법 |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005501176A (ja) | 2001-07-18 | 2005-01-13 | ザ・リージエンツ・オブ・ザ・ユニバーシテイ・オブ・コロラド | コンフォーマル超薄膜を有する金属含有微粒子の絶縁化及び機能化方法 |
JP2004152686A (ja) | 2002-10-31 | 2004-05-27 | Sekisui Chem Co Ltd | 導電性微粒子の製造装置及び導電性微粒子の製造方法 |
JP2004261747A (ja) | 2003-03-03 | 2004-09-24 | Kawasaki Heavy Ind Ltd | 粉体表面改質方法および装置 |
JP2012089510A (ja) | 2011-12-13 | 2012-05-10 | Takayuki Abe | 透明導電性微粒子及びその製造方法 |
JP2014084272A (ja) | 2012-10-26 | 2014-05-12 | Applied Materials Inc | 銅基板上のカーボンナノチューブ成長 |
US20170313437A1 (en) | 2016-04-27 | 2017-11-02 | The Boeing Company | Magnetic carbon nanotube cluster systems and methods |
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