"CalifBill" wrote in message
...




I would guess a spin (friction) weld on the cookware.


I think so ... a "cladding" process.

I know of several specialty products that bond normally incompatible
materials but the process is unique and certainly not welding.

One thing I enjoyed about the technology I was involved in was some of the
weird materials and alloys that could be produced in high vacuum deposition
systems. A process known as "sputtering" involves knocking off molecules
of a source material with energetic ions formed in a plasma and depositing
them onto an object or substrate to be coated.
Using two or more different "sources" at the same time allowed the
co-deposition of completely incompatible materials resulting in a really
strange alloy.

The original "Silverstone" cookware was produced in this manner.

Eisboch

"Eisboch" wrote in message
...

"CalifBill" wrote in message
...




I would guess a spin (friction) weld on the cookware.


I think so ... a "cladding" process.

I know of several specialty products that bond normally incompatible
materials but the process is unique and certainly not welding.

One thing I enjoyed about the technology I was involved in was some of the
weird materials and alloys that could be produced in high vacuum
deposition systems. A process known as "sputtering" involves knocking
off molecules of a source material with energetic ions formed in a plasma
and depositing them onto an object or substrate to be coated.
Using two or more different "sources" at the same time allowed the
co-deposition of completely incompatible materials resulting in a really
strange alloy.

The original "Silverstone" cookware was produced in this manner.

Eisboch


Did not know that about the Silverstone. We used sputtering for coating the
disks in disk drives.

"Calif Bill" wrote in message
...



Did not know that about the Silverstone. We used sputtering for coating
the disks in disk drives.


The original disk drives were not vacuum deposited and the magnetic
orientation was horizontal, limiting the capacity of the disk. Sputtering
allowed columnar growth and the magnetic material had a vertical
orientation, a major breakthrough in terms of disk capacity.

We built several large in-line sputter deposition systems for hard disks for
Seagate and others. We also built a few CD coating systems. They were
amazing. They processed a raw CD blank in less than 2 seconds, depositing
about 600 Angstroms of aluminum (just short of becoming opaque).

Other companies blew us away though, doing the aluminum deposition, data
imaging, protective overcoat and applying the label in less time.

Eisboch

"Eisboch" wrote in message
...

"Calif Bill" wrote in message
...



Did not know that about the Silverstone. We used sputtering for coating
the disks in disk drives.


The original disk drives were not vacuum deposited and the magnetic
orientation was horizontal, limiting the capacity of the disk. Sputtering
allowed columnar growth and the magnetic material had a vertical
orientation, a major breakthrough in terms of disk capacity.

We built several large in-line sputter deposition systems for hard disks
for Seagate and others. We also built a few CD coating systems. They
were amazing. They processed a raw CD blank in less than 2 seconds,
depositing about 600 Angstroms of aluminum (just short of becoming
opaque).

Other companies blew us away though, doing the aluminum deposition, data
imaging, protective overcoat and applying the label in less time.

Eisboch


Probably biggest improvement in disk drive capacity from the sputtering was
a much more uniform coating and less defects. Since a lot of my disk drive
design time was doing flaw scan software, I notice a lot of improvement in
that alone. Other item I notice about CD's is everybody protects the clear
side and does not worry about the coated side. But the coated side is much
more critical to data integrity.