JP2019511714A - 燐光性強磁性粒子配合物及び該配合物を用いた非破壊試験の方法 - Google Patents
燐光性強磁性粒子配合物及び該配合物を用いた非破壊試験の方法 Download PDFInfo
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Abstract
Description
1ミクロン〜50ミクロンの平均ドメインサイズを有する磁性粉末100重量部と、1ミクロン〜50ミクロンの平均ドメインサイズを有するアルミン酸酸化ストロンチウム70重量部〜100重量部とを乾燥粉末混合物として混合し、150重量部の水中でスラリー化する。ポリアミド6を10重量部で添加する。溶剤のm−クレゾールを40重量部で添加して、そのポリアミドを溶解させる。水性スラリーを、m−クレゾール中に溶解させたポリアミドとコロイドミル中で合して、約30分間にわたり混合する。そのコロイドミルの内容物をフィルタープレス中に排出して、濾過ケークが得られる。該濾過ケークを、水と一緒に1ミクロン〜30ミクロンの平均粒径にまでボールミルで粉砕し、50ミクロンより大きい粒子を篩別により分離してから、炉内乾燥する。入射UV光刺激なく画像形成する非破壊試験に適した粒子の分散体が得られる。
Claims (28)
- 粒子の分散体であって、前記粒子のそれぞれが、
少なくとも1つの強磁性ドメインと、
刺激波長、少なくとも5秒間の残光、及び可視波長発光を有する少なくとも1つの燐光体ドメインと、
前記刺激波長及び前記可視波長発光を透過するポリマー樹脂と、
を含み、前記ポリマー樹脂は、前記少なくとも1つの強磁性ドメイン及び前記少なくとも1つの燐光体ドメインを被覆しており、かつ粒径を定める、粒子の分散体。 - 前記ポリマー樹脂は、ポリアミドである、請求項1に記載の粒子の分散体。
- 前記ポリマー樹脂は、メラミンである、請求項1に記載の粒子の分散体。
- 前記ポリマー樹脂は、ラテックスである、請求項1に記載の粒子の分散体。
- 前記ポリマー樹脂は、アクリル又はメタクリル樹脂である、請求項1に記載の粒子の分散体。
- 前記ポリマー樹脂は、ポリビニル樹脂である、請求項1に記載の粒子の分散体。
- 前記ポリマー樹脂は、エポキシ樹脂である、請求項1に記載の粒子の分散体。
- 前記ポリマー樹脂は、UV硬化するように適合されている、請求項1〜7のいずれか一項に記載の粒子の分散体。
- 前記少なくとも1つの強磁性ドメインは、γ−Fe2O3を含む、請求項1〜7のいずれか一項に記載の粒子の分散体。
- 前記少なくとも1つの強磁性ドメインは、式Fe3O4を有するマグネタイトを含む、請求項1〜7のいずれか一項に記載の粒子の分散体。
- 前記少なくとも1つの燐光体ドメインは、アニオンとの塩として存在する金属及び活性化剤ドーパントを含む、請求項1に記載の粒子の分散体。
- 前記アニオンは、前記金属の酸化物アニオン、窒化物アニオン、酸窒化物アニオン、硫化物アニオン、セレン化物アニオン、ハロゲン化物アニオン、又はケイ酸アニオンである、請求項11に記載の粒子の分散体。
- 前記金属は、亜鉛、カドミウム、マンガン、アルミニウム、ケイ素、希土類金属、又はそれらの組み合わせである、請求項11に記載の粒子の分散体。
- 前記活性化剤ドーパントは、銅、マンガン、希土類、又はそれらの組み合わせであるが、但し、前記活性化剤ドーパントは、前記金属と同じではない、請求項11に記載の粒子の分散体。
- 前記粒径は、1ミクロン〜200ミクロンである、請求項1〜7のいずれか一項に記載の粒子の分散体。
- 前記粒径は、40ミクロン〜120ミクロンである、請求項1〜7のいずれか一項に記載の粒子の分散体。
- 蛍光性材料を更に含む、請求項1〜7のいずれか一項に記載の粒子の分散体。
- 試験品を非破壊検査する方法であって、
請求項1に記載の粒子の分散体を前記試験品の表面に適用することと、
前記試験品の周りに磁界を誘導することと、
前記試験品の表面を、前記粒子の分散体の燐光を刺激するように適合された入射エネルギーに曝露することと、
次に、前記表面への入射エネルギー曝露を停止することと、
次に、前記入射エネルギー曝露のない状態で、前記試験品の表面上の粒子の分散体の位置を画像形成して、前記試験品を非破壊検査することと、
を含む、方法。 - 前記画像形成は、暗所で行われる、請求項18に記載の方法。
- 前記画像形成は、可視光下で行われる、請求項18に記載の方法。
- 前記入射エネルギー源は、紫外光である、請求項18に記載の方法。
- 前記入射エネルギー源は、電子線源である、請求項18に記載の方法。
- 前記入射エネルギー源は可視光であり、かつ前記画像形成は暗所で行われる、請求項18に記載の方法。
- 前記適用は、乾式で溶剤なしで行われ、かつ前記粒子の分散体は40ミクロン〜120ミクロンの平均粒径を有する、請求項18に記載の方法。
- 前記適用は、溶剤を用いて噴霧として行われ、かつ前記粒子の分散体は1ミクロン〜60ミクロンの平均粒径を有する、請求項18に記載の方法。
- 試験品を非破壊検査するための検査システムであって、
請求項1に記載の粒子の分散体を収容する容積部を有するタンクと、
前記粒子の分散体を前記タンクから前記試験品の表面上に移送するための、前記容積部と流体連通している適用装置と、
前記試験品を磁化するための誘導コイルと、
前記粒子の分散体の燐光を刺激するためのエネルギー源と、
前記粒子の分散体が検査領域において前記エネルギー源により刺激されないように前記エネルギー源から離れている検査領域と、
を備える、検査システム。 - 前記エネルギー源は、レーザーである、請求項26に記載の検査システム。
- 前記エネルギー源は、前記タンクの容積部に入射する、請求項26に記載の検査システム。
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US201662307217P | 2016-03-11 | 2016-03-11 | |
US62/307,217 | 2016-03-11 | ||
PCT/US2016/067801 WO2017155584A1 (en) | 2016-03-11 | 2016-12-20 | Phosphorescent ferro-magnetic particle formulation and method of non-destructive testing therewith |
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JPS51139387A (en) * | 1975-05-27 | 1976-12-01 | Tokushu Toryo Kk | High-temperature magnetic agent for finding fault |
US4049845A (en) | 1976-03-08 | 1977-09-20 | Rca Corporation | Method for preparing filter-coated phosphor particles |
JPS5941472B2 (ja) | 1976-12-20 | 1984-10-06 | 株式会社日立製作所 | 顔料付着けい光体の製造方法 |
JPS60211358A (ja) | 1984-04-06 | 1985-10-23 | Tokushu Toryo Kk | 磁粉探傷用着色磁粉の製造法 |
CA2003752C (en) | 1988-12-21 | 2001-01-16 | Pabitra Datta | Surface treatment of phosphor particles and method for a crt screen |
JPH07116429B2 (ja) | 1989-08-25 | 1995-12-13 | 日亜化学工業株式会社 | 顔料付き蛍光体 |
JP2543825B2 (ja) | 1993-04-28 | 1996-10-16 | 根本特殊化学株式会社 | 蓄光性蛍光体 |
JP3819505B2 (ja) | 1997-01-23 | 2006-09-13 | 株式会社エムアイテック | 磁粉探傷法 |
US7226966B2 (en) | 2001-08-03 | 2007-06-05 | Nanogram Corporation | Structures incorporating polymer-inorganic particle blends |
JP3829019B2 (ja) | 1998-10-02 | 2006-10-04 | 日鉄鉱業株式会社 | 蓄光性多層膜被覆粉体 |
JP2002310993A (ja) * | 2001-04-12 | 2002-10-23 | Nissan Motor Co Ltd | 磁気探傷方法 |
JP2003270212A (ja) | 2002-03-15 | 2003-09-25 | Kawasaki Heavy Ind Ltd | 磁粉探傷法および磁粉探傷装置ならびにその磁粉探傷に用いる磁気シート |
US7682603B2 (en) | 2003-07-25 | 2010-03-23 | The Trustees Of The University Of Pennsylvania | Polymersomes incorporating highly emissive probes |
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US8662682B2 (en) * | 2008-11-04 | 2014-03-04 | Susanna Sidoti Gorodisher | Magnetically repositionable reflective safety devices |
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