SUBSCRIBE Clayart Tyler J. Stephenson on tue 22 jun 10
To whom it may concern;
I am a Materials Engineer conducting research at the University of =3D20
Alberta and I require some advice in the area of glass to metal =3D20
bonding and enameling.
My group is focusing on building a sensor for an oil and gas =3D20
application. The sensor will eventually be installed in an oil well =3D20
and be in direct contact with crude oil (BTEX, alkali salts, chlorine, =3D2=
0
H2S, etc...). The sensor body is a pressure feed through made =3D20
primarily of INCONEL X750 which is a nickel based super alloy. The =3D20
entire sensor module will be about the size of a film container, and =3D20
the sensor components will be fabricated on its circular cross section.
Prior to patterning the sensor components, the cross section must be =3D20
electrically insulated by the deposition of an oxide layer. The oxide =3D2=
0
must be corrosion resistant, withstand 200 degrees celsius, abrasion =3D20
resistant, electrically insulating, and have a similar linear thermal =3D20
expansion coefficient to that of INCONEL X750 which is around 12.6 =3D20
mircons/mK. The maximum thickness of the coating should be around 1 =3D20
mm and the minimum thickness can be as low as 0.1 microns.
I have been experimenting with a suspension of MgO particles in which =3D20
I spin coat them onto the surface and bake them in an oven at 500 C =3D20
for 1 hour to facilitate bonding.
My questions are these:
1. How do you facilitate the creation of a cohesive interface between =3D2=
0
a metal and a glass or ceramic layer?
2. Does anyone know of a ceramic powder, composite ceramic powder or =3D20
suspension of a powder that will work for my application?
3. Can anyone suggest a good method for applying the ceramic/glass to =3D2=
0
the surface of the INCONEL X750 substrate?
4. What is a good solvent or solvents to mix with a fine ceramic =3D20
powder to make a suspension that can be spin coated or applied to a =3D20
surface by painting, spraying or dipping?
5. Some oxides I have considered are CoO, MgO, and NiO as they all =3D20
have higher thermal expansion coefficients around that of INCONEL. =3D20
Has anyone ever applied these oxides to a surface before? and if so, =3D20
how did you do it?
6. Are there any other ways of creating an enamel besides coating a =3D20
surface with a ceramic suspension or paste and firing in an oven?
7. What type of substrate preparation is necessary prior to =3D20
depositing an enamel, ceramic or glass coating onto a metal surface?
Attached is a fairly crude picture of the cross section of the INCONEL =3D2=
0
pressure feed through. This is the surface that I need to coat with =3D20
something that will stick and be electrically insulating AND corrosion =3D2=
0
resistant. The problem has been a tough nut to crack...
Any help you can provide would be greatly appreciated.
Thank you very much for your time.
Sincerely;
Tyler Stephenson
Phoenix Rising Farm on tue 22 jun 10
Tyler:
Please find a copy of Ceramics Industry magazine, June 2010...this
month's issue.
You will be able to find it online here:
http://digital.bnpmedia.com/publication/?i=3D39388
The article you should read begins on page 16, referring to
complementary ceramic coatings
as they apply to tooling, but you may find the information useful.
I hope that helps.
Best,
Wayne Seidl
On 6/22/2010 2:44 PM, SUBSCRIBE Clayart Tyler J. Stephenson wrote:
> To whom it may concern;
>
> I am a Materials Engineer conducting research at the University of
> Alberta and I require some advice in the area of glass to metal
> bonding and enameling.
>
> My group is focusing on building a sensor for an oil and gas
> application. The sensor will eventually be installed in an oil well
> and be in direct contact with crude oil (BTEX, alkali salts, chlorine,
> H2S, etc...). The sensor body is a pressure feed through made
> primarily of INCONEL X750 which is a nickel based super alloy. The
> entire sensor module will be about the size of a film container, and
> the sensor components will be fabricated on its circular cross section.
>
> Prior to patterning the sensor components, the cross section must be
> electrically insulated by the deposition of an oxide layer. The oxide
> must be corrosion resistant, withstand 200 degrees celsius, abrasion
> resistant, electrically insulating, and have a similar linear thermal
> expansion coefficient to that of INCONEL X750 which is around 12.6
> mircons/mK. The maximum thickness of the coating should be around 1
> mm and the minimum thickness can be as low as 0.1 microns.
>
> I have been experimenting with a suspension of MgO particles in which
> I spin coat them onto the surface and bake them in an oven at 500 C
> for 1 hour to facilitate bonding.
>
> My questions are these:
>
> 1. How do you facilitate the creation of a cohesive interface between
> a metal and a glass or ceramic layer?
>
> 2. Does anyone know of a ceramic powder, composite ceramic powder or
> suspension of a powder that will work for my application?
>
> 3. Can anyone suggest a good method for applying the ceramic/glass to
> the surface of the INCONEL X750 substrate?
>
> 4. What is a good solvent or solvents to mix with a fine ceramic
> powder to make a suspension that can be spin coated or applied to a
> surface by painting, spraying or dipping?
>
> 5. Some oxides I have considered are CoO, MgO, and NiO as they all
> have higher thermal expansion coefficients around that of INCONEL.
> Has anyone ever applied these oxides to a surface before? and if so,
> how did you do it?
>
> 6. Are there any other ways of creating an enamel besides coating a
> surface with a ceramic suspension or paste and firing in an oven?
>
> 7. What type of substrate preparation is necessary prior to
> depositing an enamel, ceramic or glass coating onto a metal surface?
>
> Attached is a fairly crude picture of the cross section of the INCONEL
> pressure feed through. This is the surface that I need to coat with
> something that will stick and be electrically insulating AND corrosion
> resistant. The problem has been a tough nut to crack...
>
> Any help you can provide would be greatly appreciated.
>
> Thank you very much for your time.
>
> Sincerely;
>
> Tyler Stephenson
>
--
Phoenix Rising Farm
393 on the Houlton Road
Waite, Maine 04492
A proud member of the
Washington County Food Alliance
Birgit Wright on wed 23 jun 10
Hi Tyler=3D3B When I was in Art College in the dark ages we had a studio t=
ha=3D
t was called Metal glazing. It was like copper enamelling but on carbon st=
=3D
eel=3D2C we had to put a blue base coat on the steel=3D2C fuse it in a copp=
er e=3D
namelling kiln=3D2C and then apply with little shakers the copper enamel po=
wd=3D
er which formed a glass like glaze in the kiln=3D2C It was supposed to simu=
la=3D
te how industry applied enamel coatings to appliances. I enjoyed the works=
=3D
hops enormously but it was also the last and only time I did it. I expect =
=3D
the the blue base we used to bond the glaze is the key. It was at Sheridan=
=3D
College in Ontario. The teachers name was Frank Reynolds=3D2C but both he =
an=3D
d the fellow who developed the base have passed on. Perhaps someone in the =
=3D
appliance industry could help you.=3D20
Good luck=3D2C Birgit Wright =3D20
=3D20
> Date: Tue=3D2C 22 Jun 2010 12:44:26 -0600
> From: tjs10@UALBERTA.CA
> Subject: Glass to metal bonding
> To: Clayart@LSV.CERAMICS.ORG
>=3D20
> To whom it may concern=3D3B
>=3D20
> I am a Materials Engineer conducting research at the University of=3D20
> Alberta and I require some advice in the area of glass to metal=3D20
> bonding and enameling.
>=3D20
> My group is focusing on building a sensor for an oil and gas=3D20
> application. The sensor will eventually be installed in an oil well=3D20
> and be in direct contact with crude oil (BTEX=3D2C alkali salts=3D2C chlo=
rine=3D
=3D2C=3D20
> H2S=3D2C etc...). The sensor body is a pressure feed through made=3D20
> primarily of INCONEL X750 which is a nickel based super alloy. The=3D20
> entire sensor module will be about the size of a film container=3D2C and=
=3D20
> the sensor components will be fabricated on its circular cross section.
>=3D20
> Prior to patterning the sensor components=3D2C the cross section must be=
=3D20
> electrically insulated by the deposition of an oxide layer. The oxide=3D2=
0
> must be corrosion resistant=3D2C withstand 200 degrees celsius=3D2C abras=
ion=3D
=3D20
> resistant=3D2C electrically insulating=3D2C and have a similar linear the=
rmal=3D
=3D20
> expansion coefficient to that of INCONEL X750 which is around 12.6=3D20
> mircons/mK. The maximum thickness of the coating should be around 1=3D20
> mm and the minimum thickness can be as low as 0.1 microns.
>=3D20
> I have been experimenting with a suspension of MgO particles in which=3D2=
0
> I spin coat them onto the surface and bake them in an oven at 500 C=3D20
> for 1 hour to facilitate bonding.
>=3D20
> My questions are these:
>=3D20
> 1. How do you facilitate the creation of a cohesive interface between=3D2=
0
> a metal and a glass or ceramic layer?
>=3D20
> 2. Does anyone know of a ceramic powder=3D2C composite ceramic powder or=
=3D20
> suspension of a powder that will work for my application?
>=3D20
> 3. Can anyone suggest a good method for applying the ceramic/glass to=3D2=
0
> the surface of the INCONEL X750 substrate?
>=3D20
> 4. What is a good solvent or solvents to mix with a fine ceramic=3D20
> powder to make a suspension that can be spin coated or applied to a=3D20
> surface by painting=3D2C spraying or dipping?
>=3D20
> 5. Some oxides I have considered are CoO=3D2C MgO=3D2C and NiO as they al=
l=3D20
> have higher thermal expansion coefficients around that of INCONEL.=3D20
> Has anyone ever applied these oxides to a surface before? and if so=3D2C=
=3D20
> how did you do it?
>=3D20
> 6. Are there any other ways of creating an enamel besides coating a=3D20
> surface with a ceramic suspension or paste and firing in an oven?
>=3D20
> 7. What type of substrate preparation is necessary prior to=3D20
> depositing an enamel=3D2C ceramic or glass coating onto a metal surface?
>=3D20
> Attached is a fairly crude picture of the cross section of the INCONEL=3D=
20
> pressure feed through. This is the surface that I need to coat with=3D20
> something that will stick and be electrically insulating AND corrosion=3D=
20
> resistant. The problem has been a tough nut to crack...
>=3D20
> Any help you can provide would be greatly appreciated.
>=3D20
> Thank you very much for your time.
>=3D20
> Sincerely=3D3B
>=3D20
> Tyler Stephenson
=3D20
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