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Friday, February 25, 1877
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Staff Reporter
Students experiment with platinum
By JULIE ROBINSON
Two University of Kansas graduate students are experimenting with $5,000 worth of platinum, a metal most artists-earn successes one-can't afford to work over.
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Lee Carrell and Ron Hinton, both assistant instructors of design, have been working with the metal since last March, when KU was one of two universities in the country selected to experiment with platinum.
Matthey Bishop, a British corporation that markets platinum, sent both KU and the Rochester Institute of Technology 20 ounces of platinum because both institutions are noted for their work in jewelry and silversmithing.
MATTHEY BISHOP donated the metal to open the platinum market again and to.
revive interest in the metal as jewelry material, Carrell said.
Its use in jewelry work declined after the second World War, when white gold, a cheaper metal that resembles platinum, took its place.
Then, in the 1960s, platinum was used industrially and in aerospace technology because of its durability and high melting temperature. This use, according to the net price of the metal high and caused a decline in its use in jewelry making.
Carrall that platinum is an excellent metal for jewelry making because it is strong, durable and doesn't tarnish. Its best qualities are its resistance to wear on them well and doesn't wear out, he said.
HOWEVER, THE metal is hard to paint,
hard to melt and costs about $20 an ounce.
"I worked with platinum before, but I was so worried—because I didn't know anything about the metal and了我 afraid I would mess it up—that I really didn't learn anything," Carrall said. "But now we feel a real freedom to experiment with it."
Both Hinton and Carroll had worked with small quantities of platinum before.
Hinton said, "We have an awe and respect for the metal."
Hinton and Carrell are using this research as part of their graduate work. Carroll, who will receive a master's degree in May, plans to show contain some platinum jewelry.
THE AGREEMENT with Matthey Bishop is that if they decide to keep the jewelry, they have to pay for the metal used in it. The jewelry is then marketed at the jewelry if they decide to sell it.
project. The corporation has already placed platinum scraps with fresh platinum.
to tar, Hinton and Carroll have used
the third of the platinum. The other
two twiddles are less precise.
They have been using traditional metal techniques such as casting, construction, fusing and fabrication. They intend to compare the properties of platinum with two metals they are more familiar with, gold and silver.
Carrell said that the corporation's donation was supposed to be a one-timing gift, but he said he wasn't aware of it.
Scarlett says platinum is harder to bend, scratch or melt because it is much harder than gold or silver. Its melting temperature is that of gold or silver—300 degrees Fahrenheit.
"I prefer gold so far, around 18 carat gold, but I can't get enough to work with," Carrell said. "After that I like silver, and then platinum."
Prof says Lawrence relatively unpolluted
Although Harvard University scientists began a study of the effects of sulfur pollution on lungs and other aspects of human health in the Topeka area recently, a University of Kansas professor says that Lawrence is relatively pollution-free.
Dennis Lars, assistant professor of civil engineering, said this week that the compounds of sulfur the Harvard team was studying weren't produced by Lawrence and which would include the Cooperative Farms Chemicals Association (CFCA).
A recent story by the Associated Press said that the Harvard team, led by Charles Hube, would spend five weeks in Topkenz to assess the health of the tissue will be monitored for several years.
LUNG TISSUE is being examined to determine the effect of sulfur compounds, particularly sulfur dioxide, which is formed when coal is burned. Coal and fuel oil are inert materials that do not react with coal and power generating plants that are located in the eastern United States.
Also, a coal-fired generating station will open next west year of Topeka.
Topeka was chosen as a starting point for the study because it represented an apex of a triangle of pollution, the base of which is the Eastern Seaboard.
Other cities to be study are: St. Louis,
Watertown, Mass.; Beauville,
Otisco; New York.
Lane said these cities represented areas with large amounts of industry. Topeka was compared to areas farther west, it had nearly 10 times the amount of air pollutants.
"BUT I DON'T think it' anything to get alarmed about yet. The starting place always seems to be 10 times worse," he said.
Lane said one thing that bothered him was that Wichita was excluded from the study, although it was more of a pollution problem than Topeka.
Pollution has two basic forms—gas and particulates—Lane said. Sulfur dioxide is the gas form and sulfates, or sulfur compounds, are the particulate form. Both forms, when inhaled in small quantities, can be harmful.
For instance, sulfur dioxide can combine with fluid coating the lining of the lungs to form sulfuric acid, which will destroy the lung tissue. Lane said that the effects of water were unknown and that the Harvard study was aimed at finding the effect.
LANE SAID that because of natural gas and other fuel shortages, more coal might be used.
"We ought to get some research background now so we can put the brakes on (pollution) before a severe problem exists." And no nulu dioxide problem in Lawrence."
Lane also said that the only particulates found in Lawrence were from soil that was carried from area farms. The CFCA plant east of Lawrence on K-10 highway doesn't have a natural outlet but attains ozone; another pollutant that is commonly emitted by automobile exhaust.
The state of Kansas has no standard by which to judge a dangerous level of nitrous oxide concentration, Lane said. But by using federal standards, he said, it was determined that the plant won't emitting a dangerous level of the pollutant.
"The plant is trying to clean up. They're doing it as a good faith effort," he said, adding that nearly all of the equipment used for cleaning is also other experimental or newly developed.
Lane said the Kansas Power and Light consensuous effort, to control pollution per se.
"There are so many types of sulfur particles besides sulfur," Lane said, "and we don't know which one, if any, might cause respiratory trouble."
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