SPI-Glas™ Brand Glassy (Vitreous) Carbon Substrates (Plates)

Select from a large variety of glassy carbon plates

A large assortment of standard sizes in four different grades of glassy carbon is now available. We believe this to be the largest off-the-shelf offering of glassy carbon plates in the world."} Note: That we use here the terms "glassy carbon substrates" interchangeably with "glassy carbon plates" because some parts of the world and in some industries, they would be known as "plates" but in other markets and industries, they are known as "substrates".

Applications for glassy carbon plates:
We are always amazed at the wide variety of applications being discovered on an on-going basis for the SPI-Glas™ Glassy Carbon Plates. Probably the largest single application is for fuel cell and other electrochemical electrodes. The SPI-Glas glassy carbon plates are also used in "mechanical applications" such as when used as a structural component of a furnace. Researchers all over the world are using the glassy carbon plates in thin film applications. And we are learning now that some users of scanning electron microscopes (SEMs), where high purity is required, are using the glassy carbon substrates to support samples while being examined by SEM/EDS. Because of the unusual surface properties of the glassy carbon, a number of liquids spread far easier on the glassy carbon than on other carbon based substrates. Consequently, the preferred method for the examination of human blood by SEM or other methods is to do the spreading of the blood sample, on glassy carbon.

The glassy carbon substrates are also used for certain thin film deposition experiments. The removal of the glassy carbon is relatively easy using the SPI Plasma Prep II plasma etcher so the deposited coating can be picked up and examined, as is, for TEM or embedded in SPI-Pon™ Epoxy Embedding Resin and thin sectioned. This is a far faster route to TEM data than the more traditional ion milling approach. Of course, substrate effects can be important to one's results and therefore, this kind of reasoning must be done very carefully.

Is glassy carbon "better" than HOPG?
Glassy carbon is relatively expensive and although HOPG is also expensive, at least in the case of HOPG, the plate can be cleaved into thinner ribbons, so that in essence can get some number of cleavings out of each plate. And this means the cost per cleaved surface becomes far less costly than the cost of an entire plate. So if you application does not demand the glassy qualities of glassy carbon, consider whether HOPG would work for you.

Thickness:
Our technology presently permits us to make plates up to 6 mm thick. We can not make plates of greater thickness at the present time. What we offer as plates represents the thickest possible glassy carbon plate we can presently produce. And not all plates can be produced in all thicknesses. As the plates get larger and larger, if the thickness is not some minimum amount, there is breakage during the manufacturing.

Standard Sizes (not all sizes available in all grades):
10 x 10 x2 mm
50 x 50 x2 mm
100 x 100 x2 mm
105 x 210 x2 mm

Glassy (vitreous) carbon substrates

SPI-Glas™ 25 Grade (use to 3000°C)
	SPI #	Each	10 +, Each	In Stock
10x10x2 mm	4165GC-AB	$60.40	$54.36	Yes
50x50x2 mm	4169GC-AB	905.84	815.26	Yes
100x100x2 mm	4166GC-AB	3656.31	3290.68	No
300x300x2 mm	4170GC-AB	20000.00	18000.00	No

SPI-Glas™ 22 Grade (use to 3000°C)
	SPI #	Each	10 +, Each	In Stock
Thickness: 1 mm
25 mm x 25 mm	4301GCP-AB	$ 61.74	$ 55.57	Yes
50 mm x 50 mm	4302GCP-AB	214.04	192.64	No
100 mm x 100 mm	4303GCP-AB	839.63	755.67	Yes
200 mm x 200 mm	4304GCP-AB	2691.26	2422.13	No

Thickness: 2 mm
25 mm x 25 mm	4305GCP-AB	$ 55.60	$ 50.04	Yes
50 mm x 50 mm	4306GCP-AB	170.84	153.76	Yes
100 mm x 100 mm	4307GCP-AB	668.33	601.50	Yes
200 mm x 200 mm	4308GCP-AB	2164.58	1948.12	No

Thickness: 3 mm
25 mm x 25 mm	4310GCP-AB	$ 53.55	$ 48.20	Yes
50 mm x 50 mm	4311GCP-AB	150.62	135.56	Yes
100 mm x 100 mm	4312GCP-AB	522.74	470.47	No
200 mm x 200 mm	4313GCP-AB	2105.36	1894.82	No

Thickness: 4 mm
25 mm x 25 mm	4315GCP-AB	$ 55.60	$ 50.04	Yes
50 mm x 50 mm	4316GCP-AB	159.76	143.78	Yes
100 mm x 100 mm	4317GCP-AB	689.43	620.49	Yes
200 mm x 200 mm	4318GCP-AB	2164.58	1948.12	No

Thickness: 5 mm
25 mm x 25 mm	4360GCP-AB	$ 61.74	$ 55.57	Yes
50 mm x 50 mm	4361GCP-AB	214.04	192.64	Yes
100 mm x 100 mm	4362GCP-AB	839.69	755.72	No
200 mm x 200 mm	4363GCP-AB	2691.26	2422.13	No

Thickness: 6 mm
25 mm x 25 mm	4351GCP-AB	$ 80.33	$ 72.30	Yes
50 mm x 50 mm	4352GCP-AB	281.98	253.78	Yes
100 mm x 100 mm	4353GCP-AB	1061.21	955.09	Yes
200 mm x 200 mm	4354GCP-AB	3581.03	3222.93	No

SPI-Glas™ 11 Grade (use to 1100°C)
	SPI #	Each	10 +, Each	In Stock
Thickness: 1 mm
25 mm x 25 mm	4356GCP-AB	$ 55.60	$ 50.04	Yes
50 mm x 50 mm	4357GCP-AB	191.42	172.28	Yes
100 mm x 100 mm	4358GCP-AB	753.27	677.94	Yes
200 mm x 200 mm	4359GCP-AB	2421.93	2179.74	No

Thickness: 2 mm
25 mm x 25 mm	4370GCP-AB	$ 49.40	$ 44.46	Yes
50 mm x 50 mm	4371GCP-AB	154.35	138.92	Yes
100 mm x 100 mm	4372GCP-AB	617.40	555.66	No
200 mm x 200 mm	4373GCP-AB	1945.13	1750.62	No

Thickness: 3 mm
25 mm x 25 mm	4375GCP-AB	$ 53.55	$ 48.20	Yes
50 mm x 50 mm	4376GCP-AB	164.64	148.18	Yes
100 mm x 100 mm	4377GCP-AB	648.27	583.44	No
200 mm x 200 mm	4378GCP-AB	2040.89	1836.80	No

Thickness: 4 mm
25 mm x 25 mm	4380GCP-AB	$ 49.40	$ 44.46	Yes
50 mm x 50 mm	4381GCP-AB	154.35	138.92	Yes
100 mm x 100 mm	4382GCP-AB	617.40	555.66	No
200 mm x 200 mm	4383GCP-AB	1945.13	1750.62	No

Thickness: 5 mm
25 mm x 25 mm	4385GCP-AB	$ 55.60	$ 50.04	Yes
50 mm x 50 mm	4386GCP-AB	191.42	172.28	Yes
100 mm x 100 mm	4387GCP-AB	753.27	677.94	No
200 mm x 200 mm	4388GCP-AB	2421.93	2179.74	No

Thickness: 6 mm
25 mm x 25 mm	4390GCP-AB	$ 74.13	$ 66.72	Yes
50 mm x 50 mm	4391GCP-AB	253.16	227.84	Yes
100 mm x 100 mm	4392GCP-AB	985.79	887.21	No
200 mm x 200 mm	4393GCP-AB	3215.94	2894.35	No

SPI-Glas™ 10 Grade (use to 1100°C)
	SPI #	Each	10 +, Each	In Stock
10x10x2 mm	4167GC-AB	$32.94	$29.65	Yes
50x50x2 mm	4171GC-AB	494.10	444.69	Yes
100x100x2 mm	4168GC-AB	1976.38	1778.74	No
300x300x2 mm	4172GC-AB	11000.00	9900.00	No

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