Methods and Coatings for Advanced Audio Recording and Playback

Patent metadata

Field	Value
Publication number	US-2018240474-A1
Application number	US-201615752170-A
Country	US
Kind code	A1
Filing date	Aug 12, 2016
Priority date	Aug 12, 2015
Publication date	Aug 23, 2018
Grant date	—

Abstract

An embodiment of the invention provides a phonorecord for embodying an audio recording. The phonorecord can comprise a substrate and a conformal coating disposed on at least a portion of the substrate. The substrate can comprise one or more grooves embodying the audio recording.

First claim

1 . A phonorecord for embodying an audio recording comprising:
a. a metal substrate; b. a lacquer coating disposed on at least a portion of the metal substrate, the lacquer coating comprising one or more grooves embodying the audio recording; and c. a conformal coating disposed on at least a portion of the lacquer coating.

2 . The phonorecord of claim 1 , wherein the lacquer coating comprises a nitrocellulose lacquer.

3 . The phonorecord of claim 1 , wherein the conformal coating is made from a material comprising one or more of quartz (SiO 2 ), sapphire (Al 2 O 3 ), or diamond-like carbon (DLC).

4 . The phonorecord of claim 3 , wherein the material is SiO 2 .

5 . The phonorecord of claim 3 , wherein the material is Al 2 O 3 .

6 . The phonorecord of claim 3 , wherein the material is diamond-like carbon.

7 . The phonorecord of claim 1 , wherein the Mohs Hardness of the conformal coating is greater than the Mohs Hardness of the lacquer coating.

8 . The phonorecord of claim 7 , wherein conformal coating has a Mohs Hardness of at least about 7.

9 . The phonorecord of claim 1 , wherein the Vickers Hardness of the conformal coating is greater than the Vickers Hardness of the lacquer coating.

10 . The phonorecord of claim 9 , wherein conformal coating has a Vickers Hardness of at least about 1000.

11 . The phonorecord of claim 1 , wherein the thickness of the conformal coating is from about 10 nm to about 500 nm

12 . The phonorecord of claim 1 , wherein the thickness of the conformal coating is from about 10 to about 200 nm.

13 . The phonorecord of claim 1 , wherein the thickness of the conformal coating is from about 100 nm to about 150 nm.

14 . The phonorecord of claim 1 , wherein the metal substrate comprises aluminum.

15 . The phonorecord of claim 1 , further comprising a conductive layer disposed onto at least a portion of the conformal coating, the conductive layer configured to shed dust from an outer surface of the phonorecord.

16 . The phonorecord of claim 15 , wherein the conductive layer comprises a carbon-based material selected from the group consisting of carbon nanotubes, graphene, and graphite.

17 . The phonorecord of claim 1 , wherein the one or more grooves form a lacquer coating topography.

18 . The phonorecord of claim 17 , wherein the conformal coating has a conformal coating topography, the conformal coating topography being substantially identical to the lacquer coating topography.

19 . The phonorecord of claim 1 , further comprising an optical layer disposed onto at least a portion of the lacquer coating, the optical layer storing digital data.

20 . A method for producing a phonorecord for embodying an audio recording comprising:
a. providing a metal substrate; b. disposing a lacquer coating onto at least a portion of the metal substrate; c. introducing one or more grooves into the lacquer coating, the one or more grooves embodying the audio recording; and d. disposing a conformal coating onto at least a portion of the lacquer coating.

21 . The method of claim 20 , wherein the Mohs Hardness of the conformal coating is greater than the Mohs Hardness of the lacquer coating.

22 . The method of claim 21 , wherein conformal coating has a Mohs Hardness of at least about 7.

23 . The method of claim 20 , wherein the Vickers Hardness of the conformal coating is greater than the Vickers Hardness of the lacquer coating.

24 . The method of claim 23 , wherein conformal coating has a Vickers Hardness of at least about 1000.

25 . The method of claim 20 , wherein the conformal coating is made from a material comprising one or more of silica (SiO 2 ), alumina (Al 2 O 3 ), or diamond-like carbon (DLC).

26 . The method of claim 20 , wherein disposing the conformal coating comprises performing one or more of ion assisted deposition, electron beam evaporation, sputtering, thermal evaporation, chemical vapor deposition and physical vapor deposition.

27 . The method of claim 20 , wherein disposing the conformal coating comprises performing ion assisted deposition.

28 . The method of claim 20 , wherein disposing the conformal coating comprises performing ion assisted deposition.

29 . The method of claim 20 , wherein disposing the conformal coating comprises performing atomic layer deposition.

30 . The method of claim 20 , wherein disposing the conformal coating is performed at a temperature of less than about 100° C.

31 . The phonorecord of claim 20 , wherein the thickness of the conformal coating is from about 10 nm to about 200 nm.

32 . The method of claim 20 , further comprising disposing a conductive layer onto at least a portion of the conformal coating, the conductive layer configured to shed dust from an outer surface of the phonorecord.

33 . The method of claim 30 , wherein the conductive layer comprises a material selected from the group consisting of a carbon-based material and a metal.

34 . A phonorecord for embodying an audio recording comprising:
a. a vinyl substrate, the vinyl substrate comprising one or more grooves embodying the audio recording; and b. a conformal coating disposed on at least a portion of the vinyl substrate, the conformal coating having a Vickers Hardness of at least about 1000.

35 . The phonorecord of claim 34 , wherein the conformal coating is made from a material comprising one or more of silica (SiO 2 ), alumina (Al 2 O 3 ), or diamond-like carbon (DLC).

36 . The phonorecord of claim 35 , wherein the material is SiO 2 .

37 . The phonorecord of claim 35 , wherein the material is Al 2 O 3 .

38 . The phonorecord of claim 35 , wherein the material is diamond-like carbon.

39 . The phonorecord of claim 34 , wherein conformal coating has a Mohs Hardness of at least about 7.

40 . The phonorecord of claim 34 , wherein the thickness of the conformal coating is from about 10 nm to about 500 nm

41 . The phonorecord of claim 40 , wherein the thickness of the conformal coating is from about 10 to about 200 nm.

42 . The phonorecord of claim 41 , wherein the thickness of the conformal coating is from about 100 nm to about 150 nm.

43 . The phonorecord of claim 34 , further comprising a conductive layer disposed onto at least a portion of the conformal coating, the conductive layer configured to shed dust from an outer surface of the phonorecord.

44 . The phonorecord of claim 43 , wherein the conductive layer comprises a material selected from the group consisting of a carbon-based material and a metal.

45 . The phonorecord of claim 34 , wherein the one or more grooves form a vinyl substrate topography.

46 . The phonorecord of claim 34 , wherein the conformal coating has a conformal coating topography, the conformal coating topography being substantially identical to the vinyl substrate topography.

47 . The phonorecord of claim 34 , further comprising an optical layer disposed onto at least a portion of the vinyl substrate, the optical layer storing digital data.

Assignees

• Georgia Tech Res Inst
• Olympic Studio Llc

Inventors

• Burnett Joseph Henry
• Moffitt Barak
• Ready William Jud
• Wagner Brent Karl

Classifications

• B32B9/007

  comprising carbon, e.g. graphite, composite carbon · CPC title

• G11B2220/20

  Disc-shaped record carriers · CPC title

• G11B3/70

  characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers · CPC title

• B32B15/20

  comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)} · CPC title

• B32B2264/108

  Carbon, e.g. graphite particles · CPC title