A.J. Roan

Anchorage

Writer and Editor at Metal Tech News

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Articles

Scientists deliver diamond tech breakthrough

1 week ago | metaltechnews.com | A.J. Roan

In a breakthrough that could redefine the future of electronics in extreme environments, scientists in Japan have created the world's first diamond-based transistor capable of operating at high temperatures – opening the door to ultra-efficient chips that can handle intense heat and radiation where traditional silicon fails. Long prized for their beauty and durability, diamonds are quickly becoming a scientist's best friend.
Copper seen in first holes drilled at Rae

2 weeks ago | miningnewsnorth.com | A.J. Roan

White Cliff Minerals Ltd. April 7 reported that visible copper sulfides have been confirmed in the first six holes drilled at its Rae copper project in Nunavut, marking a strong start to the company's inaugural program at the emerging Coppermine River district.
New Amalga ore sorting doubles gold grade

2 weeks ago | miningnewsnorth.com | A.J. Roan

Grande Portage Resources Ltd. April 8 announced that recent testing to evaluate the implementation of a sensor-based ore sorting system at its New Amalga gold project near Juneau, Alaska, resulted in a 120% increase in gold grade for a composite sample – an outcome the company describes as transformative for its selective underground mining and offsite processing plan.
Yukon Metals funding backs first drilling

2 weeks ago | miningnewsnorth.com | A.J. Roan

Yukon Metals Corp. April 9 announced the closing of a C$11.2 million ($8 million) private placement, bolstering the company's treasury to C$17 million ($12.1 million) as it prepares to launch its first full exploration season across multiple projects in Yukon, Canada.
ORNL fires up nuclear space furnace

2 weeks ago | metaltechnews.com | A.J. Roan

Cranking up the heat on space propulsion, researchers at Oak Ridge National Laboratory have developed a high-temperature testbed capable of reaching nearly 4,000 degrees Fahrenheit to simulate the extreme conditions nuclear fuels will face in deep space – a major step toward advancing thermal propulsion systems that could one day carry astronauts to Mars.
US eyes Africa's critical minerals

2 weeks ago | metaltechnews.com | A.J. Roan

With demand for minerals like cobalt, lithium, nickel, and rare earth elements projected to surge over the next two decades, the United States is positioning itself as a partner of choice for one of the most pivotal players in the global energy transition – not a technology hub or industrial superpower, but an entire continent that holds 30% of the world's mineral reserves, long overlooked in strategic supply chain planning – Africa.
Solar cells forged from moon dust

2 weeks ago | metaltechnews.com | A.J. Roan |Felix Lang

Using simulated moon dust, researchers at the University of Potsdam, Germany, have developed lightweight, radiation-resistant solar cells by pairing lunar regolith with perovskite crystals – a potential solution to the logistical challenge of powering future missions, habitats, and infrastructure directly on the Moon without relying on heavy, Earth-made panels.
First look at Greenland rare earths mine

3 weeks ago | miningnewsnorth.com | A.J. Roan

Critical Metals Corp. March 31 published a preliminary economic assessment (PEA) outlining plans for a rare earths and critical minerals mining operation at its Tanbreez project in Southern Greenland. Located approximately 15 kilometers (nine miles) northeast of the coastal town of Qaqortoq, Tanbreez hosts a rare earths deposit enriched with tantalum, zirconium, niobium, and gallium.
Diavik reveals 158-carat yellow diamond

3 weeks ago | miningnewsnorth.com | A.J. Roan

Less than a week after reporting its discovery of a 50-million-year-old log, Rio Tinto announces that it has recovered a 2-billion-year-old 158.2 carat gem-quality yellow diamond from Diavik, Northwest Territories – one of only five yellow diamonds weighing more than 100 carats ever unearthed in the diamond mine's 22-year history.
Molten salt in motion at Idaho National Lab

3 weeks ago | metaltechnews.com | A.J. Roan

At a research facility best known for pioneering nuclear innovation, scientists at Idaho National Laboratory have built a first-of-its-kind test system that moves molten salt through a loop of steel under intense heat – hoping to understand how advanced materials and sensors perform within the harsh conditions of nuclear reactors.