Nerses Krikorian

1921 - 2018

Nerses "Krik" Krikorian: A Sentinel of Science and Security (1921–2018)

Nerses Krikorian was a figure of profound historical and scientific significance, whose life spanned the arc of the "Atomic Age." A chemist by training and an intelligence officer by necessity, Krikorian was a founding member of the Los Alamos National Laboratory (LANL) team. His contributions ranged from the primary chemistry of the first atomic weapons to the sophisticated materials science required for nuclear space propulsion, and finally to the high-stakes world of international scientific intelligence.

1. Biography: From Refugee to Research Giant

Early Life and Education

Nerses Krikorian was born on January 23, 1921, in Kharpert (Harput), Ottoman Empire. His early years were defined by the Armenian Genocide; his family fled their homeland, living as refugees in Aleppo, Syria, and later Canada, before finally settling in Niagara Falls, New York.

Krikorian’s affinity for the "central science" led him to Niagara University, where he graduated summa cum laude with a B.S. in Chemistry in 1943. His academic excellence caught the attention of the federal government during the height of World War II.

The Manhattan Project

In 1943, Krikorian was recruited to work for Union Carbide in New York City, a front for the Manhattan Project. He was tasked with developing methods to produce high-purity uranium tetrafluoride. In 1946, following the end of the war, he moved to Los Alamos, New Mexico. While many scientists left the laboratory to return to academia, Krikorian stayed, becoming a pillar of the community for the next seven decades.

2. Major Contributions: High-Temperature Materials and Nuclear Chemistry

Krikorian’s scientific career was characterized by an ability to solve the "impossible" material requirements of the Cold War.

Refractory Materials and Carbides: Krikorian became a global authority on the crystallography and thermodynamics of refractory carbides (materials extremely resistant to heat and wear). This was essential for building reactors that could withstand the intense heat of nuclear fission.
Project Rover (Nuclear Thermal Propulsion): One of his most significant technical achievements was his work on Project Rover (1955–1972). The goal was to build a nuclear-powered rocket for deep-space exploration. Krikorian developed the specialized materials for the reactor cores that could operate at temperatures exceeding 2,500 degrees Celsius while being bombarded by radiation.
Crystallography of Actinides: He contributed to the fundamental understanding of how uranium and plutonium atoms arrange themselves in solid states, a field critical for the long-term stability and safety of nuclear stockpiles.
Intelligence and Diplomacy: In the 1970s, Krikorian’s career took a unique turn. Fluent in several languages and possessing a deep scientific intuition, he helped found the Los Alamos Intelligence Division. He became a primary liaison with Soviet scientists during the late Cold War, using "scientific diplomacy" to assess foreign nuclear capabilities and foster arms control dialogues.

3. Notable Publications

While much of Krikorian’s early work was classified for decades, his unclassified contributions to materials science remain highly cited in the field of inorganic chemistry.

"The System Zirconium-Nitrogen" (1960): A foundational study on the phase relationships of zirconium, critical for nuclear cladding.
"High-Temperature Properties of the Carbides" (1964): Published in Journal of the Electrochemical Society, this work laid the groundwork for modern refractory material science.
"The Preparation and Crystal Structure of Am2C3" (1967): An essential paper on the crystallography of americium compounds, published in the Journal of Inorganic and Nuclear Chemistry.
Technical Reports on Project Rover: Numerous LANL reports (such as LA-3586) detailing the behavior of graphite-carbide fuels under extreme thermal stress.

4. Awards & Recognition

Krikorian’s dual legacy as a scientist and a security expert earned him accolades from both the Department of Energy and the Intelligence Community.

The Los Alamos Medal (2003): The highest honor bestowed by Los Alamos National Laboratory, recognizing his lifelong contributions to national security and science.
CIA Intelligence Medal: Awarded for his work in analyzing foreign nuclear programs and his role in the "Intel" community.
The Los Alamos National Laboratory Fellow: A title reserved for the most distinguished researchers at the institution.
Honorary Doctorate from Niagara University (2005): Returning to his alma mater to be recognized for his global impact.

5. Impact & Legacy

Krikorian’s legacy is twofold. In the realm of Materials Science, his research on how materials behave under the most extreme conditions imaginable (high radiation, high temperature) paved the way for modern aerospace engineering and nuclear power safety.

In the realm of Global Security, he was a pioneer of "Scientific Intelligence." He proved that a deep understanding of chemistry was the best tool for verifying treaty compliance and understanding the technical progress of adversaries. He was also a mentor to generations of Los Alamos scientists, emphasizing that scientific rigor and ethical responsibility must go hand-in-hand.

6. Collaborations

Krikorian worked alongside the titans of 20th-century physics and chemistry:

J. Robert Oppenheimer: Krikorian was one of the few who worked at Los Alamos during Oppenheimer’s tenure and remained active long enough to see the laboratory transition into the 21st century.
Norris Bradbury: He worked closely under the lab's second director to stabilize Los Alamos as a permanent research facility.
Soviet Scientists: During the 1970s and 80s, he engaged in high-level exchanges with members of the Soviet Academy of Sciences, acting as a bridge between two superpowers.

7. Lesser-Known Facts

Polyglot: Krikorian was fluent in six languages, including Armenian, Russian, French, and German. This linguistic prowess was what eventually drew him into the world of intelligence.
A Witness to History: He was present at the Trinity Test in July 1945, witnessing the first detonation of a nuclear weapon. He often spoke of the
"unearthly light"
and the profound weight of responsibility that followed.
The Armenian Community: Despite his high-level security clearances, he remained deeply connected to his roots. He was a founding member of the Armenian Cultural Association of New Mexico and was instrumental in helping the newly independent Republic of Armenia establish scientific ties after the fall of the Soviet Union.
Longevity at the Lab: Krikorian officially "retired" in 1991 but continued to work as a consultant and volunteer at Los Alamos until shortly before his death at age 97. He was often described as the "living memory" of the laboratory.

Conclusion

Nerses Krikorian was more than a chemist; he was a bridge between the era of discovery and the era of diplomacy. His work ensured that the power of the atom was understood, contained, and used as a tool for national defense and scientific exploration. His life journey—from a child fleeing genocide to a scientist safeguarding the world—remains one of the most compelling narratives in American science.