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FR3057179B1 - Procede de fabrication d'elements spheriques submicrometriques ou micrometriques, a cœur en materiau inorganique et revetement en diamant - Google Patents

Procede de fabrication d'elements spheriques submicrometriques ou micrometriques, a cœur en materiau inorganique et revetement en diamant Download PDF

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Publication number
FR3057179B1
FR3057179B1 FR1659696A FR1659696A FR3057179B1 FR 3057179 B1 FR3057179 B1 FR 3057179B1 FR 1659696 A FR1659696 A FR 1659696A FR 1659696 A FR1659696 A FR 1659696A FR 3057179 B1 FR3057179 B1 FR 3057179B1
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France
Prior art keywords
particles
diamond
submicrometric
core
inorganic material
Prior art date
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FR1659696A
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English (en)
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FR3057179A1 (fr
Inventor
Amelie Venerosy
Jean-Charles Arnault
Hugues Girard
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Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Priority to FR1659696A priority Critical patent/FR3057179B1/fr
Publication of FR3057179A1 publication Critical patent/FR3057179A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

L'invention concerne un procédé de fabrication d'éléments sphériques de tailles submicrométriques ou micrométriques, ayant un cœur en un matériau inorganique différent du diamant et un revêtement en diamant recouvrant le cœur, le procédé comprenant : - la fourniture d'une première suspension colloïdale contenant des premières particules sphériques, de tailles submicrométriques ou micrométriques, dispersées dans un premier solvant, lesdites premières particules étant en matériau inorganique différent du diamant et ayant une première charge de surface ; - la fourniture d'une deuxième suspension colloïdale contenant des deuxièmes particules sphériques, de tailles nanométriques, dispersées dans un deuxième solvant miscible dans le premier solvant, lesdites deuxièmes particules étant en diamant et ayant une deuxième charge de surface opposée à la première charge de surface ; - la formation d'une poudre comprenant les premières particules dont la surface est ensemencée par les deuxièmes particules, par mise en contact, sous agitation, de la première suspension colloïdale avec la deuxième suspension colloïdale et par élimination, par évaporation, des premier et deuxième solvants ; - la formation du revêtement en diamant par croissance de diamant à partir des deuxièmes particules présentes à la surface des premières particules, la croissance étant réalisée par dépôt chimique en phase vapeur assisté par plasma dans des conditions permettant la coalescence des deuxièmes particules.
FR1659696A 2016-10-07 2016-10-07 Procede de fabrication d'elements spheriques submicrometriques ou micrometriques, a cœur en materiau inorganique et revetement en diamant Active FR3057179B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1659696A FR3057179B1 (fr) 2016-10-07 2016-10-07 Procede de fabrication d'elements spheriques submicrometriques ou micrometriques, a cœur en materiau inorganique et revetement en diamant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1659696A FR3057179B1 (fr) 2016-10-07 2016-10-07 Procede de fabrication d'elements spheriques submicrometriques ou micrometriques, a cœur en materiau inorganique et revetement en diamant
FR1659696 2016-10-07

Publications (2)

Publication Number Publication Date
FR3057179A1 FR3057179A1 (fr) 2018-04-13
FR3057179B1 true FR3057179B1 (fr) 2021-05-21

Family

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Family Applications (1)

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FR1659696A Active FR3057179B1 (fr) 2016-10-07 2016-10-07 Procede de fabrication d'elements spheriques submicrometriques ou micrometriques, a cœur en materiau inorganique et revetement en diamant

Country Status (1)

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FR (1) FR3057179B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT411070B (de) * 1996-03-25 2003-09-25 Electrovac Verfahren zur herstellung eines substrates mit einer polykristallinen diamantschicht
CA2687459C (fr) * 2007-07-23 2016-05-17 Element Six Limited Procede de fabrication d'un materiau extra dur encapsule
US9005436B2 (en) * 2008-05-10 2015-04-14 Brigham Young University Porous composite particulate materials, methods of making and using same, and related apparatuses
US9192915B2 (en) * 2008-05-10 2015-11-24 Brigham Young University Porous composite particulate materials, methods of making and using same, and related apparatuses
CH702576B1 (fr) * 2010-01-18 2014-11-14 Sigatec Sa Pièce de micro-mécanique revêtue.

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Publication number Publication date
FR3057179A1 (fr) 2018-04-13

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