Next: saving artwork

| Print |  Email
Articles - October 2012
Monday, September 24, 2012

 

BY LINDA BAKER

1012 NextArt museums rely on protective coatings to shield outdoor sculptures from weather and air pollution. But figuring out how effective those anticorrosion coatings are and when they need to be replaced remains a challenge. Most evaluation techniques rely on visual cues, but at that point the damage has already occurred. The diagnostic process can also harm the sculpture, as it often requires exposing the underlying metal to the elements. Tami Lasseter Clare, a chemistry professor at Portland State University, has received a grant from the National Science Foundation to test a new “electrochemical” diagnostic tool that would allow museums to quickly and safely evaluate such coatings. The innovation involves mounting surface electrodes to the sculpture; those electrodes measure “permeability to electrolytes,” an indicator of how protective the coating is, Clare says. The new technique doesn’t leave any residue. The director of the Regional Laboratory for the Science of Cultural Heritage Conservation, Clare is working on a related project testing an environmentally friendly waterborne coating, a project that may have applications for building and the bridge industry. “Most of the time, coatings for artwork are directly translatable to other materials,” says Clare. “But the reverse is not always true.” 

 

More Articles

Big Trouble in China?

Guest Blog
Tuesday, August 18, 2015
0818-wellmanthumbBY JASON NORRIS | CFA

Earlier this month, the People’s Bank of China (PBoC) announced they were going to devalue their currency, the Renminbi. While the amount of the targeted change was to be roughly 2 percent, investors read a lot more into the move. The Renminbi had been gradually appreciating against the U.S. dollar (see chart) as to attempt to alleviate concerns of being labeled a currency manipulator.


Read more...

Bendafornia: What’s driving the Northern California migration?

Contributed Blogs
Wednesday, August 05, 2015
bendiforniathumbBY KEN MAES

A huge migration from Northern California has contributed to average 16% growth per year since 1990.


Read more...

Aim High

September 2015
Thursday, August 20, 2015
BY JOE CORTRIGHT

We get the education we deserve.


Read more...

Reader Input: Fair Play

May 2015
Wednesday, July 15, 2015

Former Governor John Kitzhaber's resignation in February prompted some soul searching in this state about ethical behavior in industry and government.


Read more...

Money Troubles

September 2015
Thursday, August 20, 2015
BY DAN COOK

The state’s angel investing fund gets hammered in Salem.


Read more...

Portland’s long-distance bike commuters

The Latest
Monday, August 03, 2015
Matt KellyresizethumbBY KIM MOORE | RESEARCH EDITOR

Pushing the extreme.


Read more...

Store Bought

July/August 2015
Friday, July 10, 2015
BY LINDA BAKER

Market of Choice is on a tear. In 2012 the 35-year-old Eugene-based grocery chain opened a central kitchen/distribution center in its hometown. The market opened a third Portland store in the Cedar Mill neighborhood this year; a Bend outpost broke ground in March. A fourth Portland location is slated for the inner southeast “LOCA” development, a mixed-use project featuring condos and retail. Revenues in 2014 were $175 million, a double-digit increase over 2013. CEO Rick Wright discusses growth, market trends and how he keeps new “foodie” grocery clerks happy.


Read more...
Oregon Business magazinetitle-sponsored-links-02
SPONSORED LINKS