公开(公告)号：US06262129B1

公开(公告)日：2001-07-17

申请号：US09127005

申请日：1998-07-31

Applicant: Christopher Bruce Murray ,  Shouheng Sun

Inventor： Christopher Bruce Murray ,  Shouheng Sun

IPC: B01F312

CPC classification number: B82Y30/00 ,  B01J35/0013 ,  B22F1/0018 ,  B22F1/025 ,  B22F9/24 ,  B22F9/305 ,  B22F2998/00 ,  B82Y25/00 ,  C22B23/04 ,  H01F1/0054 ,  H01F1/442 ,  Y10S516/922 ,  B22F9/30 ,  B22F1/0022

Abstract: A method of forming nanoparticles includes steps of forming a metal precursor solution from a transition metal, injecting the metal precursor solution to the surfactant solution, adding a flocculent to cause nanoparticles to precipitate out of solution without permanent agglomeration, and adding a hydrocarbon solvent to redisperse or repeptize the nanoparticles.

Abstract translation: 形成纳米颗粒的方法包括以下步骤：从过渡金属形成金属前体溶液，将金属前体溶液注入表面活性剂溶液中，加入絮状物以使纳米颗粒从溶液中沉淀出来，而不会持续凝聚，并加入烃溶剂再分散 或对纳米颗粒进行再胶化。

公开(公告)号：US6162532A

公开(公告)日：2000-12-19

申请号：US127453

申请日：1998-07-31

Applicant: Charles T. Black ,  Stephen M. Gates ,  Christopher B. Murray ,  Shouheng Sun

Inventor： Charles T. Black ,  Stephen M. Gates ,  Christopher B. Murray ,  Shouheng Sun

IPC: G11B5/712 ,  G11B5/62 ,  G11B5/738 ,  G11B5/842 ,  H01F1/00 ,  H01F1/047 ,  G11B5/66

CPC classification number: B82Y25/00 ,  G11B5/62 ,  H01F1/0054 ,  H01F1/0063 ,  H01F1/009 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/257

Abstract: A magnetic storage medium is disclosed which is formed from a layer of substantially uniformly spaced-apart magnetic nanoparticles of substantially uniform diameter disposed upon a surface of a substrate, with a coating, preferably of abrasion-resistant material, applied to adhere the nanoparticles to the substrate and to maintain their substantially uniform spaced-apart relationship. The nanoparticles are formed from a magnetic material selected from the group consisting of elements Co, Fe, Ni, Mn, Sm, Nd, Pr, Pt, Gd, an intermetallic compound of the aforesaid elements, a binary alloy of said elements, a ternary alloy of said elements, an oxide of Fe further comprising at least one of said elements other than Fe, barium ferrite, and strontium ferrite.

Abstract translation: 公开了一种磁性存储介质，其由基本上均匀间隔开的基本上均匀的直径的磁性纳米颗粒层形成，其设置在基底的表面上，涂覆有优选耐磨材料，以将纳米颗粒粘附到 并保持其基本均匀的间隔关系。 纳米颗粒由选自元素Co，Fe，Ni，Mn，Sm，Nd，Pr，Pt，Gd，上述元素的金属间化合物，所述元素的二元合金，三元元素 所述元素的合金，Fe的氧化物还包含除Fe以外的所述元素中的至少一种，钡铁氧体和铁酸锶。