The phrase "act as a showcase" is correct and usable in written English.
It can be used when describing something that serves to display or highlight certain features, qualities, or talents.
Example: "The exhibition will act as a showcase for emerging artists in the community."
Alternatives: "serve as a display" or "function as a demonstration".
GE, which is supplying the project's gas-powered generators, also hopes it will act as a showcase for the technology.
On one tune designed to act as a showcase for his skills, Akinmusire alternated long, impossibly thin lines with big, fat blasts that shook the room.
Perhaps no one knows the true purpose of a party conference any longer, but it certainly did not act as a showcase for a confident shadow cabinet to radiate their energy.
It is also hoped that the £43m facility – funded by industry and the Higher Education Funding Council for England – will act as a showcase for schoolchildren considering a career in engineering.
Bradwell will allow the Chinese to trial its Hualong reactor designs in the west and act as a showcase to the rest of the world for its nuclear prowess.
It costs Gondal far more to train his coaches than make the device, which seems to act as a showcase more than anything for the training system.
This entirely free app acts as a showcase for Lego's Duplo range, themed around trains.
The book acts as a showcase for successful North-South cooperation and capacity building for empowering African Universities.
The space still acts as a showcase for new writers, of whom Polly Stenham, with That Face and Tusk Tusk, is the most famous current example.
A string of dashed hopes over deals with South Korea, Morocco and most recently Brazil have confounded French leaders, despite last year's military intervention in Libya having acted as a showcase for the Rafale.
It is an oddity that Elie Saab is at once the modern face of the haute couture schedule – a Lebanese designer whose Paris show acts as a showcase for a healthy client list based in the Middle East, Asia and the US – and its most staunch traditionalist.
