Re: [rp-ml] Ceramic structures using RP

David is correct (as usual). Bluestone and Nanoform are not ceramics.

There is disagreement in the technical literature as to the correct
definition of ceramics but a useful definition I have seen is:

Any inorganic, nonmetallic solids processed or used in high temperatures.
The wide range of materials that fall within this classification includes
ceramics that are composed of clay minerals, cement, and glass. These
materials are typically insulative to the passage of electricity and heat,
and are more resistant to high temperatures and harsh environments than
metals and polymers (plastics). With regards to mechanical behavior,
ceramics are hard but very brittle.

Mike Ervin
>
> From: "David K. Leigh" <dkleigh@harvest-tech.com>
> Date: Fri, 03 Dec 2004 14:07:48 -0600
> To: Bob Olsen <Bob@protogenic.com>, "Good, Jim" <Jim.Good@tbe.com>,
> rp-ml@rapid.lpt.fi
> Subject: RE: [rp-ml] Ceramic structures using RP
>

> Those would be considered more composite materials than ceramic. Ideally,
> ceramic denotes a very high temp application. Glass filled nylon, some of the
> SLA composites, and FDM have some high temp applications. I guess it would
> depend on the requirements.
>
> *********************************************
> David K. Leigh (254)933-1000
> Harvest Technologies fax(254)298-0125
> Rapid Prototyping Services dkleigh@harvest-tech.com
>>
>> -----Original Message-----
>> From: Bob Olsen [mailto:Bob@protogenic.com]
>> Sent: Friday, December 03, 2004 1:44 PM
>> To: 'David K. Leigh'; Good, Jim; rp-ml@rapid.lpt.fi
>> Subject: RE: [rp-ml] Ceramic structures using RP
>>
>> Do the new resins, Bluestone from 3D and the Nanoform SLA from Somos qualify
>> as ceramic materials?
>>> -----Original Message-----
>>> From: David K. Leigh [mailto:dkleigh@harvest-tech.com]
>>> Sent: Friday, December 03, 2004 12:10 PM
>>> To: Good, Jim; rp-ml@rapid.lpt.fi
>>> Subject: RE: [rp-ml] Ceramic structures using RP
>>>
>>> LOM, SLS, and Z-Corp have ceramic type materials. Z-Corp is more of a sand
>>> type material for casting shells. LOM is not really a viable product. SLS
>>> ceramic materials are mainly academic. There is some SiC (silicon carbide)
>>> work out of the Univ. of Texas that has yielded promising results, but it
>>> has not been done on a large scale. We've had some ceramic parts made for a
>>> few customers, but not much.
>>> *********************************************
>>> David K. Leigh (254)933-1000
>>> Harvest Technologies fax(254)298-0125
>>> Rapid Prototyping Services dkleigh@harvest-tech.com
>>>>
>>>> -----Original Message-----
>>>> From: Good, Jim [mailto:Jim.Good@tbe.com]
>>>> Sent: Friday, December 03, 2004 10:44 AM
>>>> To: rp-ml@rapid.lpt.fi
>>>> Subject: [rp-ml] Ceramic structures using RP
>>>>
>>>> Good morning,
>>>>
>>>>
>>>>
>>>> I have a question. I just subscribed to this mail list so please be
>>>> gentle! I've been working on a comparative analysis of the RP processes
>>>> (hasn't everyone!?!) and I'm trying to determine which processes can
>>>> provide a part using ceramic materials. Can someone please give me a list
>>>> of processes that can be used with ceramic materials? I'd like to have
>>>> some samples made to test the typical characteristics such as dimensional
>>>> accuracy, surface finish, strength, etc. I will be testing all types of
>>>> materials such as the plastics, metals, ceramics, and so on. I just want
>>>> to make sure I have captured all the processes that can do ceramics.
>>>>
>>>>
>>>>
>>>> Also, on a side note, I've been trying to get an .stl file from the
>>>> benchmark part used in the rapid prototype journal entry titled
>>>> "Benchmarking for comparative evaluation of RP systems and processes" by M.
>>>> Mahesh, Y.S. Wong, J.Y.H. Fuh, and H.T. Loh, found in Volume 10 Number 2
>>>> dated 2004, pp. 123-135. Does anyone have a copy of this model file they
>>>> can send to me? I'd appreciate any help you can provide.
>>>>
>>>>
>>>>
>>>> I only have a cursory knowledge of RP processes but I'm trying to ramp up
>>>> fast. I'd appreciate any information that can be provided to me.
>>>>
>>>>
>>>>
>>>> Thank you,
>>>>
>>>>
>>>>
>>>> Jim Good
>>>>
>>>> Muniz Engineering
>>>>
>>>> In Situ Fabrication and Repair
>
Received on Fri Dec 03 22:08:56 2004