US20100107816A1 - Method of making metal flakes - Google Patents

Method of making metal flakes Download PDF

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Publication number
US20100107816A1
US20100107816A1 US12/608,058 US60805809A US2010107816A1 US 20100107816 A1 US20100107816 A1 US 20100107816A1 US 60805809 A US60805809 A US 60805809A US 2010107816 A1 US2010107816 A1 US 2010107816A1
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US
United States
Prior art keywords
base material
additive
kinetic
metal
milling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/608,058
Inventor
Henning Zoz
David Jaramillo-Vigueras
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zoz GmbH
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Assigned to ZOZ GMBH reassignment ZOZ GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZOZ, HENNING, JARAMILLO-VIGUERAS, DAVID
Publication of US20100107816A1 publication Critical patent/US20100107816A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • B22F1/054—Nanosized particles
    • B22F1/0551—Flake form nanoparticles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Definitions

  • the invention relates to a method of making metal flakes by kinetic milling.
  • Metal flakes produced in this manner are used in large-scale industrial applications as pigments, solders, protective coatings, electromagnetic shielding, antifouling coatings, or biokinetically active coatings, etc.
  • metal flakes are currently produced by low- or high-kinetic milling methods, also known as “mechanical alloying” or “high-kinetic processing,” from only one predetermined base material.
  • the base material is typically a metal in the form of water- or a gas-atomized powder.
  • the object of the invention is to further improve a known method of making metal flakes in that it is also suitable for making metal flakes having improved properties.
  • the object is attained by the method defined in patent claim 1 .
  • the method is characterized in that at least one further alloying additive is provided in addition to the metal base material, and that making the metal flakes is carried out by kinetic milling of the base material together with the at least one alloying additive such that the base material is mechanically alloyed with the one alloying additive.
  • the core of the invention is therefore that not only one, but at least two materials, e.g. the base material and an alloying additive, are used in the high-kinetic milling process and are then together mechanically alloyed into alloy metal flakes by the milling process.
  • the high-kinetic milling process enables the creation of novel materials, particularly also ductile compounds that cannot be produced in the conventional fusion metallurgical manner.
  • novel materials particularly also ductile compounds that cannot be produced in the conventional fusion metallurgical manner.
  • These are in particular saturated and over-saturated mixed crystal formations (superalloys), saturated, metastable, or quasicrystalline intermetal phase materials such as amorphous or partially amorphous materials.
  • the novel flake materials produced according to the invention have improved optical, electrical, chemical, electromagnetic, electrochemical, mechanical, biokinetic, or improved hydraulic properties.
  • the materials produced according to the invention are used for example as pigments, solders, protective coatings, electromagnetic shielding, antifouling coatings, or as biokinetically active coating
  • the base material is a metal such as aluminum, nickel, copper, palladium, silver, gold, or lead, each having a cubic face-centered Kfz lattice structure, or titanium, iron, cobalt, zinc, or molybdenum, the latter elements having a cubic space-centered KRZ lattice structure.
  • a metallic alloy may also be used as the base material.
  • the alloying additive additionally used according to the invention is preferably also a metal, further preferably one of the metals mentioned above, or an oxide, a carbide, or a nitride.
  • the alloying additive additionally used according to the invention may also be carbon nano tubes CNT, and/or fibrous materials (fibers) such as fiber glass or Kevlar fibers, and/or polymers such as polytetrafluoroethylene (PTFE).
  • the fibrous materials have a geometric function, for example it is incorporated into the metal structure of the base material, preferably as a whole by the mechanical alloying. For this purpose a suitable tempering of the alloy process is required. Furthermore, a ductile matrix is in particular necessary with the use of the fibrous materials.
  • All stated alloying additives may be mechanically alloyed either individually, or in any desired combination with each other.
  • the kinetic milling process is either a high- or low-energy kinetic milling process.
  • the method according to the invention enables making a novel material by mechanical alloying of a metal (base material) together with an alloying additive in the form of at least one further metal, or a non-metal.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

The invention relates to a method of making metal flakes by low- or high-kinetic milling, also known as mechanical alloying. The object of the invention is to further improve such a known method such that it is also suitable for making metal flakes having improved properties. The object is attained according to the invention in that at least one further alloying additive is provided in addition to a metal base material, and that making the metal flakes is carried out by kinetic milling of the base material together with the at least one alloying additive such that the base material and the alloying additive are mechanically alloyed with each other.

Description

  • The invention relates to a method of making metal flakes by kinetic milling.
  • Metal flakes produced in this manner are used in large-scale industrial applications as pigments, solders, protective coatings, electromagnetic shielding, antifouling coatings, or biokinetically active coatings, etc.
  • Such methods are generally known from the prior art. Traditionally, metal flakes are currently produced by low- or high-kinetic milling methods, also known as “mechanical alloying” or “high-kinetic processing,” from only one predetermined base material. The base material is typically a metal in the form of water- or a gas-atomized powder.
  • Based on the prior art the object of the invention is to further improve a known method of making metal flakes in that it is also suitable for making metal flakes having improved properties.
  • The object is attained by the method defined in patent claim 1. The method is characterized in that at least one further alloying additive is provided in addition to the metal base material, and that making the metal flakes is carried out by kinetic milling of the base material together with the at least one alloying additive such that the base material is mechanically alloyed with the one alloying additive.
  • The core of the invention is therefore that not only one, but at least two materials, e.g. the base material and an alloying additive, are used in the high-kinetic milling process and are then together mechanically alloyed into alloy metal flakes by the milling process. In this manner the high-kinetic milling process enables the creation of novel materials, particularly also ductile compounds that cannot be produced in the conventional fusion metallurgical manner. These are in particular saturated and over-saturated mixed crystal formations (superalloys), saturated, metastable, or quasicrystalline intermetal phase materials such as amorphous or partially amorphous materials. Contrary to known materials, the novel flake materials produced according to the invention have improved optical, electrical, chemical, electromagnetic, electrochemical, mechanical, biokinetic, or improved hydraulic properties. The materials produced according to the invention are used for example as pigments, solders, protective coatings, electromagnetic shielding, antifouling coatings, or as biokinetically active coatings, etc.
  • According to a first embodiment of the invention the base material is a metal such as aluminum, nickel, copper, palladium, silver, gold, or lead, each having a cubic face-centered Kfz lattice structure, or titanium, iron, cobalt, zinc, or molybdenum, the latter elements having a cubic space-centered KRZ lattice structure.
  • As an alternative a metallic alloy may also be used as the base material.
  • The alloying additive additionally used according to the invention is preferably also a metal, further preferably one of the metals mentioned above, or an oxide, a carbide, or a nitride.
  • However, the alloying additive additionally used according to the invention may also be carbon nano tubes CNT, and/or fibrous materials (fibers) such as fiber glass or Kevlar fibers, and/or polymers such as polytetrafluoroethylene (PTFE). The fibrous materials have a geometric function, for example it is incorporated into the metal structure of the base material, preferably as a whole by the mechanical alloying. For this purpose a suitable tempering of the alloy process is required. Furthermore, a ductile matrix is in particular necessary with the use of the fibrous materials.
  • All stated alloying additives may be mechanically alloyed either individually, or in any desired combination with each other.
  • The kinetic milling process is either a high- or low-energy kinetic milling process.
  • Advantageously, the method according to the invention enables making a novel material by mechanical alloying of a metal (base material) together with an alloying additive in the form of at least one further metal, or a non-metal.

Claims (11)

1. A method of making metal flakes, comprising the following steps:
providing a metal base material;
providing an additive alloyable with but different from the base material; and
simultaneously kinetic milling the base material and the alloying additive such that the base material and the alloying additive are mechanically alloyed with each other.
2. The method according to claim 1, wherein the base material is aluminum, nickel, copper palladium, silver, gold, lead, titanium, iron, cobalt, zinc, or molybdenum.
3. The method according to claim 1, wherein the base metal is a metallic alloy.
4. The method according to claim 1 wherein the base material or the alloying additive for the kinetic milling process is a water- or gas-atomized powder.
5. The method according to claim 1 wherein the alloying additive is aluminum, nickel, copper, palladium, silver, gold, lead, titanium, iron, cobalt, zinc, or molybdenum; an oxide; a carbide; a nitride, carbon nano tubes; fiber glass or Kevlar fibers; or a polymer; or any desired combination of two or more of these components.
6. The method according to claim 1 wherein the kinetic milling is a high- or low-energy kinetic milling.
7. The method defined in claim 1 wherein the alloying additive is polytetrafluorethylene.
8. The method defined in claim 1 wherein the base material or the additive is a pure metal.
9. The method defined in claim 1 wherein the base material is a pure metal.
10. The method defined in claim 1 wherein both the base material and the additive are a pure metal.
11. The method defined in claim 1 wherein both the base material and the additive are fine powders.
US12/608,058 2008-10-30 2009-10-29 Method of making metal flakes Abandoned US20100107816A1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102008053891 2008-10-30
DE102008053891.4 2008-10-30
DE102009050709.4 2009-10-26
DE102009050709 2009-10-26
DE102009051147.4 2009-10-29
DE102009051147A DE102009051147A1 (en) 2008-10-30 2009-10-29 Process for the production of metal flakes

Publications (1)

Publication Number Publication Date
US20100107816A1 true US20100107816A1 (en) 2010-05-06

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US12/608,058 Abandoned US20100107816A1 (en) 2008-10-30 2009-10-29 Method of making metal flakes

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US (1) US20100107816A1 (en)
DE (1) DE102009051147A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109676153A (en) * 2019-01-28 2019-04-26 武汉科技大学 A kind of method that can prepare simultaneously porous gold nano grain Yu hexagon gold-nano-piece

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832156A (en) * 1972-09-27 1974-08-27 Us Bronze Powders Inc Powdered metal process
US4762677A (en) * 1987-11-03 1988-08-09 Allied-Signal Inc. Method of preparing a bulk amorphous metal article
US5242513A (en) * 1990-03-15 1993-09-07 Sumitomo Electric Industries, Ltd. Method of preparing on amorphous aluminum-chromium based alloy
US5296189A (en) * 1992-04-28 1994-03-22 International Business Machines Corporation Method for producing metal powder with a uniform distribution of dispersants, method of uses thereof and structures fabricated therewith
WO1999058274A1 (en) * 1998-05-08 1999-11-18 Savin Roland R Modification of metallic particles
US20070199410A1 (en) * 2003-07-11 2007-08-30 H.C. Starck Gmbh. Method For The Production Of Fine Metal Powder, Alloy Powder And Composite Powder
US20070264149A1 (en) * 2006-05-15 2007-11-15 Roberto Martinez Sanchez Reinforced aluminum alloy and its process of manufacture
US8016909B2 (en) * 2005-08-12 2011-09-13 Dunwilco (1198) Limited Process for producing metal flakes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832156A (en) * 1972-09-27 1974-08-27 Us Bronze Powders Inc Powdered metal process
US4762677A (en) * 1987-11-03 1988-08-09 Allied-Signal Inc. Method of preparing a bulk amorphous metal article
US5242513A (en) * 1990-03-15 1993-09-07 Sumitomo Electric Industries, Ltd. Method of preparing on amorphous aluminum-chromium based alloy
US5296189A (en) * 1992-04-28 1994-03-22 International Business Machines Corporation Method for producing metal powder with a uniform distribution of dispersants, method of uses thereof and structures fabricated therewith
WO1999058274A1 (en) * 1998-05-08 1999-11-18 Savin Roland R Modification of metallic particles
US20070199410A1 (en) * 2003-07-11 2007-08-30 H.C. Starck Gmbh. Method For The Production Of Fine Metal Powder, Alloy Powder And Composite Powder
US8016909B2 (en) * 2005-08-12 2011-09-13 Dunwilco (1198) Limited Process for producing metal flakes
US20070264149A1 (en) * 2006-05-15 2007-11-15 Roberto Martinez Sanchez Reinforced aluminum alloy and its process of manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109676153A (en) * 2019-01-28 2019-04-26 武汉科技大学 A kind of method that can prepare simultaneously porous gold nano grain Yu hexagon gold-nano-piece

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Publication number Publication date
DE102009051147A1 (en) 2010-05-06

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Owner name: ZOZ GMBH,GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ZOZ, HENNING;JARAMILLO-VIGUERAS, DAVID;SIGNING DATES FROM 20091106 TO 20091111;REEL/FRAME:023715/0994

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION